All Common Epic Games Store Error and Fixes

Epic Games, Inc. is one of the popular American video game and software companies that offers plenty of well-known games and its own sort of digital video game storefront. That digital video game storefront is known as ‘Epic Games Store’ where Windows and macOS compatible video games can be found. It’s also a direct competitor of Steam. Meanwhile, there are Common Epic Games Store Error and Fixes mentioned below that you can check out.

To be precise, the ‘Epic Games Store’ application or you can say ‘Epic Games Launcher’ may conflict with multiple problems due to several possible reasons. Affected PC gamers might encounter such Epic Games errors or issues that can be easily resolved depending on the reasons. Now, if you’re also one of the victims then you can follow this troubleshooting guide to easily know about all errors and manually resolve them completely.

All Common Epic Games Store Error and Fixes

As per your specific error code, you can follow the respective methods one by one. So, without wasting any more time, let’s jump into it.

1. “The necessary prerequisites have failed to install”

If you receive a Self Update Failed error message that provides an error code like, or similar to, SU-PQE1223 or SU-PQR1603 then don’t worry. It indicates either you’re not running the Epic Games Launcher as an administrator or the Microsoft Visual C++ Redistributables are not installed or your Windows user account doesn’t have read/write access to the folder. To fix this error:

A. Run the Epic Games Launcher as an Administrator

• Right-click on the Epic Games Launcher exe or shortcut file on your PC.
• Now, select Properties > Click on the Compatibility tab.
• Make sure to click on the Run this program as an administrator checkbox to checkmark it.
• Click on Apply and select OK to save changes.

B. Reinstall Microsoft Visual C++ Redistributables

• Install Microsoft Visual C++ 2010 Redistributable Package (x86).
  • On 64-bit Windows also install Microsoft Visual C++ 2010 Redistributable Package (x64)
• Install Visual C++ Redistributable for Visual Studio 2012.
  • On 32-bit Windows install vcredist_x86.exe.
  • On 64-bit Windows install both vcredist_x86.exe and vcredist_x64.exe.
• Install Visual C++ Redistributable Packages for Visual Studio 2013.
  • On 32-bit Windows install vcredist_x86.exe.
  • On 64-bit Windows install both vcredist_x86.exe and vcredist_x64.exe.
• Install Visual C++ Redistributable Packages for Visual Studio 2015.
  • On 32-bit Windows install vcredist_x86.exe.
  • On 64-bit Windows install both vcredist_x86.exe and vcredist_x64.exe.
• Install the latest version of the Epic Games Launcher.
  • You can download the latest version by visiting our website and clicking Get Epic Games in the upper right corner.

C. Confirm you have read/write access to the folder

• Navigate to your selected install location.
• Right-click and select Properties.
• Select the Security tab.
• Select your username in the Group or user names box.
• Verify that there is a check under Allow beside both Read and Write in the Permissions box.

2. AS-3: No connection

This error code means that you are currently facing a connectivity problem while trying to use the Epic Games Launcher. To fix it:

A. Network connection troubleshooting
Make sure to run through all our common network troubleshooting steps such as checking the Epic Games server status page, trying wired internet connectivity, disabling Windows Firewall, turning on VPN or Proxy server, switching DNS, etc. Then try to log in to the Epic Games Launcher again.

3. CS-03: Save file size too large

This error appears when the file size of your save is too large to upload to our servers. To fix this error, reduce the number of saved files you have for that game.

If the issue persists after trimming down the number of saved files, you will need to reach out to us to have our Epic Games store team increase the file size. When you contact Epic Games Player Support please include the following:

• Name of the game
• Epic Games Launcher logs

Note: You can send the latest log file generated to Epic Games Support for technical help.

4. DP-01: Not enough permissions

This error indicates that you do not have permission to install the game. Try the steps listed below to resolve this. These steps are written for Windows 10, so some locations may vary slightly on other versions of Windows.

A. Disable Background Apps and Tasks

• Right-click on your taskbar > Click on Task Manager.
• Click on the Startup tab > For each application enabled on startup select them and click on Disable.
• Restart your computer to apply changes.

If the problem still persists, then try following steps too.

• Right-click on your taskbar > Click on Task Manager.
• Now, click on the Processes tab > Click to select tasks that are unnecessarily running in the background and consuming enough system resources.
• Click on End Task to close it one by one.
• Once done, restart your system.

B. Check Administrator Status of your User Account

• Click on Start.
• Type User Accounts and press Enter.
• If you are an Administrator then the Administrator status will be listed under your username.

C. Run the Epic Games Launcher as an Administrator

• Right-click on the Epic Games Launcher exe or shortcut file on your PC.
• Now, select Properties > Click on the Compatibility tab.
• Make sure to click on the Run this program as an administrator checkbox to checkmark it.
• Click on Apply and select OK to save changes.

D. Confirm you have read/write access to the folder

• Navigate to your selected install location.
• Right-click and select Properties.
• Select the Security tab.
• Select your username in the Group or user names box.
• Verify that there is a check under Allow beside both Read and Write in the Permissions box.

5. DP-06: Client timeout trying to install

This error shows that there is an issue with preparing the target directory for installation. This can be due to a number of reasons, including user permission issues that may be preventing read/write access to the installation directory.

A. Run the Epic Games Launcher as an Administrator

This will ensure that you’re able to install games to protected folders on your computer.

• Right-click on your Epic Games Launcher exe or shortcut.
• Click on Run as administrator > If prompted by UAC, click on Yes to confirm.

B. Confirm you have read/write access to the folder

• Navigate to your selected installation location.
• Right-click and select Properties.
• Select the Security tab > Select your username in the Group or user names box.
• Verify that there is a check under Allow beside both Read and Write in the Permissions box.

• If you do not see Read and Write checked in the Permissions box, click Edit on the bottom right.
• Check Allow on both Read and Write.
• Click Apply then OK to apply changes.

C. Change the Game Location to a Different Hard Drive

Trying to install your game on another hard drive may resolve this issue for you. You can change the download location to another drive while selecting Library by clicking on Browse: then you can click on Install.

6. IS-0005: Unable to connect

This error is caused when your computer is not connected to the internet. To fix it:

A. Network connection troubleshooting
Make sure to run through all our common network troubleshooting steps such as checking the Epic Games server status page, trying wired internet connectivity, disabling Windows Firewall, turning on VPN or Proxy server, switching DNS, etc. Then try to log in to the Epic Games Launcher again.

7. IS-0009: Manifest failed to load

This error occurs when the launcher is unable to download a game due to a corrupt or invalid file.

A. Manually uninstalling and reinstalling the game

If you uninstall and reinstall the game by removing its installation folder from your system then re-downloading the game again might resolve the issue. To do this:

• Exit the Epic Games Launcher by right-clicking on the system tray icon.
• Head over to the directory you installed the game in question. The default installation directory for your game should be like C:\Program Files\Epic Games.
• Select the game folder that is having this error appear.
• Delete the selected game folder.
• Restart the Epic Games Launcher.
• Try installing the game again.

8. IS-BV02: File Missing or Invalid

This error is caused when your computer is unable to locate a file or the file is invalid. To resolve it:

A. Perform hard drive test

Hard drives sometimes have errors that can be resolved by checking them using CHKDSK. To check your hard drive, you can follow the steps below:

• Click on the Start menu > Type cmd.
• Now, right-click on Command Prompt > Click on Run as Administrator.
• If prompted by UAC, click on Yes to proceed.
• Type chkdsk c: /r /f and press Enter.

Note: You can run this command for any hard drive by replacing c: with d: e: etc.

• Press Y and Enter to allow your hard drive to be checked when you restart your computer.
• Restart your computer.

Note: You only need to restart if you chkdsk the hard drive your operating system is running on. This process may take some time to complete. If you receive any errors, it should repair these during the process. Once this is complete, try to install your game again.

B. Perform memory test

This error is a sign that you may have bad RAM on your computer. You should perform a memory test within Windows to determine if you need to replace your memory.

• Click on the Start menu > Type Windows Memory Diagnostic and press Enter.
• Select Restart Now and check for problems.
• If any errors are found you’ll need to replace your memory and try installing your game again afterward.

9. IS-BV04: Build verification failed due to mismatched hash

This error can be caused by your hard drive using the incorrect file system required to install your game or bad memory. To resolve it:

A. Verify your hard drives are using the NTFS file system

To check the file system that your hard drive(s) are using use these steps:

• Click on Start > Type This PC and press Enter.
• Right-click on your hard drive > Click on Properties.
• The file system will be listed under the Type. If this says NTFS you’re using the correct file system. If this says FAT32, you’ll need to convert the hard drive to NTFS. To do this do the following:
  • Click on Start > Type cmd and press CTRL+SHIFT+ENTER.
  • Type convert C: /FS:NTFS and press Enter. (Make sure to type the appropriate drive letter depending on what it is on their computer.) This process may take a while depending on the size of your hard drive.

B. Perform memory test

This error is a sign that you may have bad RAM on your computer. You should perform a memory test within Windows to determine if you need to replace your memory.

• Click on Start.
• Type Windows Memory Diagnostic and press Enter.
• Select Restart Now and check for problems.

If any errors are found you’ll need to replace your memory and try installing your game again afterward.

10. IS-BV05: Build verification failed due to file size mismatch

This error can be caused by your hard drive using the incorrect file system required to install your game or bad memory.

A. Verify your hard drives are using the NTFS file system

To check the file system that your hard drive(s) are using use these steps:

• Click on Start.
• Type This PC and press Enter.
• Right-click on your hard drive and click on Properties.
• The file system will be listed under the Type. If this says NTFS you’re using the correct file system. If this says FAT32 you’ll need to convert the hard drive to NTFS. To do this do the following:
  • Click on Start.
  • Type cmd and press CTRL+SHIFT+ENTER.
  • Type convert C: /FS:NTFS and press Enter. (Make sure to type the appropriate drive letter depending on what it is on their computer.) This process may take a while depending on the size of your hard drive.

B. Perform memory test

This error is a sign that you may have bad RAM on your computer. You should perform a memory test within Windows to determine if you need to replace your memory.

• Click on Start.
• Type Windows Memory Diagnostic and press Enter.
• Select Restart Now and check for problems.

If any errors are found you’ll need to replace your memory and try installing your game again afterward.

11. IS-DS01: Out of disc space before trying to install a game

You’ll get this error when you try to download a game and your hard drive doesn’t have enough free space to install it. Free up some space on your hard drive to clear this error.

A. Free up space on your hard drive

Visit these articles for steps to free up space on your hard drive:

• If you’re on a PC, go here.
• If you’re on a Mac, go here.

B. Change the installation directory

If you’re still short on space and/or you have more than one hard drive, you can try installing the game on a different hard drive that may have more free space. You can change the download location after you click Install on any game in your Library by clicking Browse:

C. Ensure Free Storage Space on your hard drive

You can find out how much free space you have on your hard drive by following these steps:

For PC:

• Click Start and then Settings.
• Click System > Click Storage.
• Here you can check your Local storage bar to see how much space is free to use and how much is filled up. [If you want to delete something then you can do it via File Explorer and the available storage space size should be increased]

For Mac:

• Click the Apple menu, and then click About This Mac.
• Click Storage to view your Flash Storage bar and see how much space is available.

12. IS-DS02: Ran out of disc space during installation

This error occurs when you run out of space on your hard drive while downloading a game. To do so:

A. Free up hard drive space

There are several ways to free up hard drive space on your computer. Please visit this article for instructions on ways to do this.

B. Change installation directory

If you have more than one hard drive try installing the game on a different one as it may have more free space. You can change this immediately after you click Install on any game in your Library:

13. IS-FC02: Failed to create file

This error occurs when the launcher fails to create a file from chunks during the install or update process.

A. Free up hard drive space

There are several ways to free up hard drive space on your computer. Please visit this article for instructions on ways to do this.

B. Uninstall and Reinstall your game

Removing the game’s current installation files and reinstalling may resolve your issue.

• Start the Epic Games Launcher.
• Click on your Library.
• Click on the three dots next to the game you are trying to play.
• Click on Uninstall.
• Restart the Epic Games Launcher and try to install your game again.

C. Flush DNS

• Click on Start > Type cmd.
• Right-click on Command Prompt and select Run as administrator.
• If prompted by UAC, click on Yes to proceed.
• Type netsh winsock reset and press the Enter key.
• Restart your computer then repeat the same steps to re-open the ‘Command Prompt’ window.
• Type ipconfig/flushdns and press the Enter key.
• Now, type ipconfig/release and press the Enter key.
• Finally, type ipconfig /renew and press the Enter key.

14. IS-FC05: Couldn’t verify hash serialization

This error occurs when you have a valid file and file size but the file’s hash value is incorrect. This can happen when your hard drive uses an incorrect file system to install your game or your computer has faulty RAM.

A. Verify your hard drives are using the NTFS file system

Follow these steps to check the file system that your hard drive(s) are using:

• Click Start.
• Type This PC and press Enter.
• Right-click your hard drive and select Properties.
• Check the File system field.
  • If this says NTFS, you’re using the correct file system.
  • If this says FAT32, you’ll need to convert the hard drive to NTFS.

B. Perform hard drive test

Hard drives sometimes have errors that can be resolved by checking them using CHKDSK. Follow these steps to check your hard drive:

• Click on the Start menu > Type cmd.
• Right-click on Command Prompt and select Run as Administrator.
• If prompted by UAC, click on Yes to proceed.
• Type chkdsk c: /r /f and press Enter.

Note: You can run this command for any hard drive by replacing c: with d: or e: etc.

• Press Y and then Enter to allow your hard drive to be checked when you restart your computer.
• Restart your computer.

Note: You only need to restart if you check the hard drive your operating system is running on. This process may take some time to complete. If you receive any errors, your computer should repair these during the process. Once this is complete, try to install your game again.

C. Perform memory test

If you’re still seeing the error, you may have bad RAM on your computer. Try performing a memory test within Windows to determine whether you need to replace your memory:

• Click on the Start menu > Type Windows Memory Diagnostic and press Enter.
• Select Restart Now and check for problems.

If any errors are found, you’ll need to replace your memory and try installing your game again afterward.

15. IS-FC06: Unable to write or create file chunks

This appears if your system is unable to write or create file chunks when trying to download a game.

A. Verify your hard drive(s) are using the NTFS file system

To check the file system that the player’s hard drive(s) are using use these steps:

• Click on Start.
• Type This PC and press Enter.
• Right-click on your hard drive and click on Properties.
• The file system will be listed under the Type. If this says NTFS you’re using the correct file system. If this says FAT32 you’ll need to convert the hard drive to NTFS.

B. Perform hard drive test

Hard drives sometimes have errors that can be resolved by checking them using CHKDSK. To check your hard drive, please complete these steps:

• Click on the Start menu.
• Type cmd > Right-click on Command Prompt and click on Run as Administrator.
• If prompted by UAC, click on Yes to allow.
• Type chkdsk c: /r /f and press Enter.

Note: You can run this command for any hard drive by replacing c: with d: or e: etc.

• Press Y and then Enter to allow your hard drive to be checked when you restart your computer.
• Restart your computer.

Please Note: You only need to restart if you perform chkdsk on the hard drive where your operating system is installed. This process may take some time to complete. If you receive any errors, it should repair these during the process. Once this is complete, try to install your game again.

C. Perform memory test

This error is a sign that the player may have bad RAM in their computer. They should perform a memory test using Windows Memory Diagnostic to determine if they need to replace their memory.

• Click on Start.
• Type Windows Memory Diagnostic and press Enter.
• Select Restart Now and check for problems.

If any errors are found the player should replace their memory and try installing their game again afterward.

16. IS-MF-01: File failed to relocate successfully

You may run into this issue while installing a game due to the launcher being unable to relocate a file while downloading.

A. Disable background applications and tasks

Make sure you disable any background applications that could be interfering with the Epic Games Launcher as below.

• Right-click on your taskbar > Click on Task Manager.
• Click on the Startup tab > For each application enabled on startup select them and click on Disable.
• Restart your computer to apply changes.

If the problem still persists, then try following steps too.

• Right-click on your taskbar > Click on Task Manager.
• Now, click on the Processes tab > Click to select tasks that are unnecessarily running in the background and consuming enough system resources.
• Click on End Task to close it one by one.
• Once done, restart your system.

B. Uninstall and Reinstall the game

Reinstalling your game may resolve the issue.

• Open the Epic Games Launcher.
• Click on the Library.
• Locate your game and click on the three dots next to it.
• Click on Uninstall.

Once the uninstall completes, click on the game to begin the installation process again.

17. LS-0002: Incorrect launcher version running

This error happens if you’re running a version of the Epic Games Launcher that is outdated.

A. Restart the Epic Games Launcher

If there was a minor network issue or an update is missing a quick restart of the launcher may resolve this.

For Windows:

• Right-click on the system tray icon in the bottom right corner.
• Click on Exit.
• Relaunch your Epic Games Launcher.

For Mac:

• Press Control on the keyboard and click on the Epic Games Launcher icon.
• Click on Quit.
• Relaunch your Epic Games Launcher.

B. Check the Epic Games Launcher for updates

• Open the Epic Games Launcher.
• Click on Settings.
• If there is any available update you will see a notification here. Click on Update and Restart to install the latest version.

18. LS-0003: You’re not signed into the Epic Games Launcher

This error can be solved by making sure that you’ve signed into your Epic Games account on the Epic Games Launcher before you try to launch your games.

• Open the Epic Games Launcher and Sign-in to the account.
• Make sure to enter your valid email and password for your Epic Games account.
• Click on Log In Now > If you’re prompted for a 2FA code then enter it on the next screen.

Note: If you don’t have 2FA enabled on your account we recommend doing so to ensure it remains secure. You can learn steps to do this here.

19. LS-0004: Game not installed correctly

This error is caused when you’re trying to install a game but the launcher is unable to do this due to a bad file.

A. Uninstall and Reinstall your game

Removing the game’s current installation files and reinstalling may resolve your issue.

• Start the Epic Games Launcher.
• Click on your Library.
• Click on the three dots next to the game you are trying to play.
• Click on Uninstall.
• Restart the Epic Games Launcher and try to install your game again.

B. Manually Uninstall and Reinstall the game

If verifying your game files doesn’t resolve the issue you can try to manually remove your game files from your computer.

• Close the Epic Games Launcher by right-clicking on the system tray icon and clicking on Exit.
• Locate the folder where you installed your game.

Note: The default installation directory is C:\Program Files\Epic Games\

• Right-click on the game folder and click on Delete.
• Restart the Epic Games Launcher.
• Reinstall and try launching your game.

20. LS-0005: Unable to contact patch server

You will see this error code if there is an outage with our servers or a problem with your network connection.

A. Epic Games Server Outage

There may be times when our servers are unavailable and you will see this appear. Be sure to check our status page here to see if there are any incidents happening. If there are, it’s best to wait until they are resolved and then try to install your game again.

B. Network connection troubleshooting
Make sure to run through all our common network troubleshooting steps such as checking the Epic Games server status page, trying wired internet connectivity, disabling Windows Firewall, turning on VPN or Proxy server, switching DNS, etc. Then try to log in to the Epic Games Launcher again.

21. LS-0006: Installation Failed

This error means that the Epic Games Launcher is unable to install or update your game.

A. Run the Epic Games Launcher as an Administrator

By running the launcher as an administrator you ensure there are no permissions issues that could be causing the installation to fail.

• Exit the Epic Games Launcher if it is open.
• Right-click on your Epic Games Launcher shortcut.
• Click on Run as administrator.
• Try the installation or update of the game again.

B. Uninstall and Reinstall the game

Reinstalling your game may resolve the issue.

• Open the Epic Games Launcher.
• Click on the Library.
• Locate your game and click on the three dots next to it.
• Click on Uninstall.
• Once the uninstall completes, click on the game to begin the installation process again.

If verifying your game files doesn’t resolve the issue you can try to manually remove your game files from your computer.

• Close the Epic Games Launcher by right-clicking on the system tray icon and clicking on Exit.
• Locate the folder where you installed your game.

Note: The default installation directory is C:\Program Files\Epic Games\

• Right-click on the game folder and click on Delete.
• Restart the Epic Games Launcher.
• Reinstall and try launching your game.

22. LS-0009: Game is not installed

If you see this error code you’re attempting to play a game that isn’t installed.

A. Verify the game is installed

You can check to see if the game is properly installed in the Epic Games Launcher:

• Open the Epic Games Launcher
• Click on your Library.
• Locate the game you’re trying to play and confirm it says Launch.
  • If it says Launch and you’re seeing this error we recommend uninstalling and reinstalling the game:
    • Start the Epic Games Launcher.
    • Click on your Library.
    • Click on the three dots next to the game you are trying to play.
    • Click on Uninstall.
    • Restart the Epic Games Launcher and try to install your game again.
  • If it says anything other than Launch we recommend you try to verify your game files:
    • Open the Epic Games Launcher.
    • Click on the Library.
    • Click on the three dots next to the game you want to verify.
    • Click on Verify.
    • Once completed, try to launch the game.

B. Moving or Modifying Game Files

If you install a game and manually move or modify game files you may run into this error code. If this happens delete any files you moved or modified and download the game through the Epic Games Launcher.

23. LS-0013: Game is unable to launch

If you see this error code, follow the steps below to verify your game files.

If you still see this error after you’ve verified your game files, it is likely that you’re trying to play a version of the game that is no longer available, such as a press, beta, or alpha version. If this is the case, you’ll need to confirm the version of the game.

A. Verify the Game Files

Verifying your game files ensures your game is installed and updated properly. To verify your game files:

• Open the Epic Games Launcher > Click on Library.
• Click on the three dots next to the game you want to verify.
• Click on Verify > Depending on the size of the game, this process may take a while.
• Once it’s done, relaunch your game.

B. Clear the Launcher webcache

You can check out the steps for both the Windows and Mac versions below.

For Windows:

• Exit the Epic Games Launcher by right-clicking on the system tray icon in the bottom-right corner, and then click on Exit.
• Press Windows key + R and type %localappdata% to open a File Explorer window.
• Open the installed Epic Games Launcher folder.
• Open the Saved folder > Click on the webcache folder.
• Then delete it and restart your computer > Start the Epic Games Launcher.

For Mac:

• Exit the Epic Games Launcher > Open Finder.
• Click on Go then Go to Folder…
• Type ~/Library/Caches/com.epicgames.EpicGamesLauncher and press Enter.
• Delete the webcache folder.
• Press control and click on Trash.
• Click on Empty Trash.
• Relaunch the Epic Games Launcher.

C. Disable background applications and tasks

Make sure you disable any background applications that could be interfering with the Epic Games Launcher as below.

• Right-click on your taskbar > Click on Task Manager.
• Click on the Startup tab > For each application enabled on startup select them and click on Disable.
• Restart your computer to apply changes.

If the problem still persists, then try following steps too.

• Right-click on your taskbar > Click on Task Manager.
• Now, click on the Processes tab > Click to select tasks that are unnecessarily running in the background and consuming enough system resources.
• Click on End Task to close it one by one.
• Once done, restart your system.

D. Run the Epic Games Launcher as an Administrator

By running the launcher as an administrator you ensure there are no permissions issues that could be causing the installation to fail.

• Exit the Epic Games Launcher if it is open.
• Right-click on your Epic Games Launcher shortcut.
• Click on Run as administrator.
• Try the installation or update of the game again.

24. LS-0014: File not found

This error means that the game you’re attempting to launch can’t locate a file or directory that it is pointing to.

A. Verify the game files

Verifying your game files ensures your game has all the necessary files to run properly and hopefully should get the game working as expected.

• Open the Epic Games Launcher.
• Click on the Library.
• Click on the three dots icon next to the game you want to verify.
• Click on Verify > Depending on the size of the game this process may take a while. Once it’s done try to launch your game.

B. Uninstall and Reinstall the game

Reinstalling your game may resolve the issue.

• Open the Epic Games Launcher.
• Click on the Library.
• Locate your game and click on the three dots next to it.
• Click on Uninstall.
• Once the uninstall completes, click on the game to begin the installation process again.

25. LS-0015: Unable to contact waiting room server

This error usually occurs if there is a network connection problem on your end.

A. Network connection troubleshooting
Make sure to run through all our common network troubleshooting steps such as checking the Epic Games server status page, trying wired internet connectivity, disabling Windows Firewall, turning on VPN or Proxy server, switching DNS, etc. Then try to log in to the Epic Games Launcher again.

26. LS-0016: Game is unavailable

This error usually means that your game is in the process of being updated. Once the update is released and downloaded you should be able to launch the game without any problems.

A. Restart the Epic Games Launcher

Restarting the launcher refreshes the entitlements on your Epic Games account and may trigger a required game update.

For Windows:

• Right-click on the system tray icon in the bottom right corner.
• Click on Exit.
• Relaunch your Epic Games Launcher.

For Mac:

• Press Control on the keyboard and click on the Epic Games Launcher icon.
• Click on Quit.
• Relaunch your Epic Games Launcher.

If restarting the Epic Games Launcher doesn’t fix the issue, try verifying the game files.

B. Verify the game files

Verifying your game files ensures your game is installed and updated properly. To verify your game files:

• Open the Epic Games Launcher.
• Click on the Library.
• Click on the three dots next to the game you want to verify.
• Click on Verify > Depending on the size of the game, this process may take a while.
• Once it’s done, relaunch your game.

27. LS-0018: Application is still running

This error means that a game you are attempting to play is still running. If you are getting this error, force quit the game or application using your Task Manager.

A. Close the game via Task Manager

• Press CTRL+ALT+DEL > Click Task Manager.
• Click Processes > Find the game that’s still running and click on it.
• Click End Task > Relaunch your game.

B. Close a third-party launcher via Task Manager

Some games use a third-party launcher before they start. If you exit a game that uses a third-party launcher but the launcher doesn’t shut down, this might cause the error. Follow these steps to force quit the launcher:

• Right-click your taskbar, and then click Task Manager.
• If a launcher is running for a game and you get this error click on the process and click End Task. (The example below is from Civilization VI)
• Launch your game.

28. LS-0019: Prerequisites installation failed

This error code means that the prerequisites for a game have failed to install correctly or completely. This error code may also appear as:

• LS-0019-IS-IZ01
• LS-0019-IS-PQR3010

This is common when you don’t have the necessary permissions to install files or your computer requires a restart.

A. Run the Epic Games Launcher as an Administrator

• Exit the Epic Games Launcher by right-clicking on the system tray icon and clicking on Exit.
• Locate your Epic Games Launcher shortcut.
• Right-click on it > Click on Run as Administrator.
• Click on Yes on the pop-up that appears.
• Once the launcher finishes loading, try launching the game you’re trying to play.

B. Restart your computer

Some of the prerequisites that games install require a restart of your computer before the game is able to run such as the Microsoft Visual C++ Redistributables:

• Click on Start > Click on the Power icon.
• Click on Restart.
• Once your computer finishes restarting, start the Epic Games Launcher and try launching the game you’re trying to play.

C. Use the -SkipBuildPatchPrereq launcher option

• Close the Epic Games Launcher entirely.
• Right-click on the Epic Games Launcher shortcut and click Properties.
• At the end of the Target line insert the following:
  -SkipBuildPatchPrereq
  Example: “C:\Program Files (x86)\Epic Games\Launcher\Portal\Binaries\Win64\EpicGamesLauncher.exe” -SkipBuildPatchPrereq
• Click on Apply.
• Right-click on the Epic Games Launcher shortcut.
• Click on Run as Administrator.

D. Reinstall Microsoft Visual C++ Redistributables

• Install  Visual C++ Redistributable for Visual Studio.
  • On 32-bit Windows install vcredist_x86.exe.
  • On 64-bit Windows install both vcredist_x86.exe and vcredist_x64.exe.
• Install the latest version of the Epic Games Launcher.
  • You can download the latest version by visiting the official Epic Games website > Then click on Get Epic Games in the upper right corner.

29. Cyberpunk 2077 error: LS-0019-IS-PQR1638

If you receive this error when you try to launch Cyberpunk 2077, follow these steps to launch the game using REDlauncher:

• Close the Epic Games Launcher by right-clicking on the system tray icon and clicking on Exit.
• Locate the folder where you installed Cyberpunk 2077.
  Note: The default installation directory is C:\Program Files\Epic Games\
• Run REDprelauncher.exe to launch Cyberpunk 2077 through REDlauncher.

Note: If you don’t have this option, run setup_redlaunch.exe first.

• Click Play in REDlauncher to launch the game.

30. LS-0021: Your account doesn’t own this game

We released Ownership Verification built into the Epic Games Launcher as outlined here. If you are seeing this error code trying to play a game on your account then your account doesn’t own the game.

A. Verify you’re using the valid Epic Games account

You’ll want to make sure the account you’re logged in has completed a purchase for the game you are trying to play.

• Go to the www.epicgames.com website.
• Login to the Epic Games account that you’re using.
• Hover over your name in the top right corner and click on Account.
• Click on Transactions.
• Determine if you have a purchase on the account or not.

If you see a completed purchase for the game, double-check if you’re logged into that account on the Epic Games Launcher. If you’re not, log out and log in with the correct one to access your game.

If you don’t see a completed purchase for the game here you’re not logged into the correct Epic Games account. You’ll have to determine the correct one to log in that you previously made a purchase on. If you aren’t able to locate the account please reach out to us and we’ll be glad to help you locate it.

31. LS-0022: Your account doesn’t own this game

We released Ownership Verification built into the Epic Games Launcher as outlined here. If you are seeing this error code trying to play a game on your account then this means we can not confirm ownership of the game you are trying to play. This could be caused by local network connection issues, by temporary issues with our backend services, or by not being logged into the correct Epic Games account.

A. Network connection troubleshooting
Make sure to run through all our common network troubleshooting steps such as checking the Epic Games server status page, trying wired internet connectivity, disabling Windows Firewall, turning on VPN or Proxy server, switching DNS, etc. Then try to log in to the Epic Games Launcher again.

B. Verify you’re using the valid Epic Games account

You’ll want to make sure the account you’re logged in has completed a purchase for the game you are trying to play.

• Go to the www.epicgames.com website.
• Login to the Epic Games account that you’re using.
• Hover over your name in the top right corner and click on Account.
• Click on Transactions.
• Determine if you have a purchase on the account or not.

32. MD-0005: Unable to download manifest file

This error is usually caused by a service outage or network connection issue on your end.

A. Verify Epic Games service Status

Confirm our services are all online and working as expected by visiting our status page here.

B. Network connection troubleshooting
Make sure to run through all our common network troubleshooting steps such as checking the Epic Games server status page, trying wired internet connectivity, disabling Windows Firewall, turning on VPN or Proxy server, switching DNS, etc. Then try to log in to the Epic Games Launcher again.

33. MD-0011: No valid manifest file to download

If you pre-purchased a game and receive the MD-0011 error, the game has not been released yet. Once the game is released, you’ll be able to download the game successfully.

If the game you’re trying to play has been released and you’re seeing this error, the Epic Games Store team will need to correct a configuration issue. Please click on Contact Us to submit a support ticket.

34. PI-UBI-01

There are many variations of the PI-UBI-01 error code. Some of the most common errors and their resolutions can be found below.

PI-UBI-01: 101000

A. Restart the Epic Games Launcher

• Right-click on the system tray icon in the bottom right corner.
• Click on Exit.
• Relaunch your Epic Games Launcher.

PI-UBI-01:102004

This error means that there is a trial or beta on your account that can no longer be played. If you are seeing this error when trying to launch a game, double-check that you are not trying to play a trial or beta for a game that is no longer available.

PI-UBI-01: 102008

• Make sure that you are not using a VPN when trying to play the game.
• Restart your computer and try launching the game again.

Any other PI-UBI-01 error codes require the assistance of Player Support to resolve. Please be sure to let us know what game you’re seeing the error with when contacting us.

35. PI-UBI-02

If you receive the PI-UBI-02 error code when trying to access any Ubisoft title, then follow the steps below:

• Restart your machine and try to access the game again.
• Ensure you are not using a VPN.
• Ensure you do not already own the game from Uplay.

If you continue to see the error, or if you already own the game from Uplay, be sure to let us know what game you’re seeing the issue with.

36. SU-MD-HSH: Failed to asynchronously deserialize a manifest

This error occurs when the launcher tries to asynchronously deserialize a manifest when there is a mismatched hash value.

For Windows:

• Exit the Epic Games Launcher entirely by right-clicking on the tray icon and selecting Exit.
• Navigate to the following directory: C:\Users\username}\AppData\Local\EpicGamesLauncher\Saved\Config\Windows
• Open the Engine.ini file in a text editor.
• Edit the file to include the following:

[Launcher]
ForceNonSslCdn=false

Note: If the file has the above entry saying true change it to false. If you don’t see the above entry at all in the file then copy and paste it into the file.

• Save the file.
• Try launching the Epic Games Launcher.

For Mac:

• Exit the Epic Games Launcher entirely.
• Navigate to the following directory:
  /Users/{user name}/Library/Preferences/Unreal Engine/EpicGamesLauncher/Mac/
• Open the Engine.ini file in a text editor.
• Edit the file to include the following:

[Launcher]
ForceNonSslCdn=false

Note: If the file has the above entry saying true change it to false. If you don’t see the above entry at all in the file then copy and paste it into the file.

• Save the file.
• Try launching the Epic Games Launcher.

37. SU-BI-CA: Build info client auth error

You may run into this error code due to a network connection issue preventing you from being able to authenticate. You can see if this error is happening by reviewing your Epic Games Launcher log files. For more information on how to locate these click here.

Below is an example from a log file suffering from this error. It reveals that the player is unable to connect due to an SSL timeout resulting in a server connection failure:

A. Disable Background Apps and Tasks

• Right-click on your taskbar > Click on Task Manager.
• Click on the Startup tab > For each application enabled on startup select them and click on Disable.
• Restart your computer to apply changes.

If the problem still persists, then try following steps too.

• Right-click on your taskbar > Click on Task Manager.
• Now, click on the Processes tab > Click to select tasks that are unnecessarily running in the background and consuming enough system resources.
• Click on End Task to close it one by one.
• Once done, restart your system.

B. Use the -SkipBuildPatchPrereq launcher option

• Close the Epic Games Launcher entirely.
• Right-click on the Epic Games Launcher shortcut and click Properties.
• At the end of the Target line insert the following:
  -SkipBuildPatchPrereq
  Example: “C:\Program Files (x86)\Epic Games\Launcher\Portal\Binaries\Win64\EpicGamesLauncher.exe” -SkipBuildPatchPrereq
• Click on Apply.
• Right-click on the Epic Games Launcher shortcut.
• Click on Run as Administrator.

C. Network connection troubleshooting
Make sure to run through all our common network troubleshooting steps such as checking the Epic Games server status page, trying wired internet connectivity, disabling Windows Firewall, turning on VPN or Proxy server, switching DNS, etc. Then try to log in to the Epic Games Launcher again.

38. “Your account is unable to download any more free games at this time” error

If you receive this error while attempting to claim a free game, try these troubleshooting steps:

• Turn off your VPN if you are using one.
• Try using a mobile device while disconnected from wifi.

If you still can’t claim the free game, wait at least 24 hours and then try to claim the free game again.

39. UP-01 Errors

UP-01 errors occur when you’ve encountered some internal failure or when the parameters passed to the Mod Uploader are missing or invalid. To resolve these errors:

• Make sure you have valid parameters, if applicable.
• Restart the app.

40. UP-02 Errors

UP-02 errors occur when there’s a network error. To resolve these errors:

• Check your network connection.
• Restart the app.

41. UP-03 Errors

UP-03-001 and UP-03-002 errors occur when the selected directory is empty or does not exist. To resolve these errors:

• Click on Retry.
• Select an existing directory that contains the build.
• Proceed with the upload.

The UP-03-003 error occurs when the upload files are not in Draft/Changes needed status. To resolve the error:

• Recall the mod for further changes or choose another one that is in Draft/Changes needed status.
• Restart the app.

42. UP-04 Errors

UP-04 errors occur when there’s a problem with your authentication. To resolve these errors, make sure you’re using the correct user credentials to upload.

43. UP-05 Errors

UP-05-001 errors occur when the selected directory contains files that are restricted. To resolve the error:

• Remove restricted files.
• Click Retry.
• Select an existing directory that contains the build.
• Proceed with the upload.

UP-05-002 errors occur when the total files in the selected directory exceed maximum limits.

• Reduce total file size.
• Click Retry.
• Select an existing directory that contains the build.
• Proceed with the upload.

44. IS-INFO-THROTTLED

You will see this message while downloading a game on the Epic Games Launcher if you previously selected to throttle downloads. To remove this message, go to the Settings menu in the Epic Games Launcher, and then uncheck the Throttle Downloads box.

45. MD-0011-30031: Application not yet released in your region

You will encounter this error if you try to start a download for an app that you own but has not been released in your region yet. You can always check back on the game page or your library for information about the release time/date for a game.

46. MA-0005: an error occurred opening a URL

This error occurs when you do not have any browser set up as the default browser.

A. Setting up a default browser

• Go to Windows Settings > Apps > Default Apps.
• Under “Web Browser”, select a web browser.

47. Unable to Complete Sign In

This error message appears when you try to log into your Epic account but have not yet enabled cookies on your web browser or device. To solve this you will need to enable cookies on your web browser/device.

48. Enabling Cookies

If you attempt to log into your Epic Games account and you get the error message below, please be sure to open your browser and enable cookies.

A. Enable Cookies

You can follow the steps below to do so:

For Chrome:

• On your computer, open Chrome.
• Click the three dots on the far right side of your screen.
• Click Settings in the drop-down menu
• Under “Privacy and security,” click Site settings.
• Click Cookies.
• From here, you can: Turn on cookies: Next to “Blocked,” turn on the switch. Turn off cookies: Turn off Allow sites to save and read cookie data.

For Safari:

• Click Safari in the menu bar and select Preferences to open the Safari General preferences screen.
• Click the Privacy tab to open the Safari Privacy settings.
• Clear the checkmark in front of Block all cookies to enable cookies in Safari.
  • If you want to remove specific websites from the list of websites storing your information, select Manage Website Data and remove them.
• Close Preferences to save your changes.

49. Missing Games Files

If you are encountering a “Missing Game Files” error in the game main screen, please try the following steps:

• Ensure that Fall Guys is installed in your Steam games library, and not currently running.
• Download and install the Epic Online Services redistributable from this link.
• After the installation completes, start again the game normally through the Steam Client.

50. EOS-ERR-1603

If you are receiving this error message it may prompt you to install Microsoft .NET Framework 3.5. In order to resolve this error do the following:

• When you receive the pop-up to install the .NET Framework 3.5, click on Download and install this feature.
• Once this is installed, click on Close.
• You will see the error appear again. Just close the error and start the install process for Epic Online Services. It should complete successfully.

If this doesn’t work, please try the steps below:

1. Run Epic Games Launcher as an administrator
2. Run all Windows updates
   • Type Updates in Windows search and press Enter
   • In the new window, click Check for updates
   • Install everything available
   • Reboot your system
3. Grant write and read access to Epic Games Launcher
   • Type Epic Games in Windows search
   • Right-click and select Open file location
   • Right-click on Epic Games Launcher and select Properties
   • Go to the Security tab
   • Select your username from the list
   • Click on Edit
   • Select your username and make sure the permissions for Read and Write are set to Allow 
   • Click Apply and OK
4. Shut down Windows Installer service
   • Press Ctrl + Shift + Esc on your keyboard to open the Task Manager
   • Go to the Details tab
   • Scroll down until you find msiexec.exe
   • Highlight msiexec.exe and select End Task
5. Run Install and Uninstall troubleshooter from Microsoft
   • Visit the official Microsoft Website for the troubleshooter
   • Click Download troubleshooter
   • Once downloaded, double-click the MicrosoftProgram_Install_and_Uninstall.meta.diagcap file
   • When launched, pick the Installing option
6. Reinstall Epic Games Launcher on your main drive
   • Press Win + E to open File Explorer
   • Create the following folder/path: C:\\Program Files (x86)\\Epic Games
   • Go to the following location: [your install location]\\Epic Games\\Launcher\\Portal\\Extras\\EOS 
   • Double-click EpicOnlineServics.msi and install it into the previously created location

If these steps did not resolve the issue, submit a Support Request to further assist with the specific error.

That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.

Credit: Epic Games Store Help