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
- LS-0019-IS-PQE1223
This is common when you don't have the necessary permissions to install files or your computer requires a restart.
Run the Epic Games Launcher as an administrator
Windows
- 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.
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.
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.
Reinstall Microsoft Visual C++ Redistributables
- 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.