Fortnite Launcher Error ‘SU-PQR1603’ problem solving

In this tutorial, we help you to fix SU-PQR1603 error in Fortnite. Fortnite is the best co-op sandbox survival and action building video game. Fortnite Battle Royale is the FREE 100-player PvP mode in Fortnite. With one giant map and a battle bus. Fortnite building skills and destructible environments combined with intense PvP combat. Well, in this article, I am going to teach you how to fix Fortnite Error SU-PQR1603. We describe very a simple way to solve this error in Fortnite video game.

Please close the launcher, then try the following and let me know if it helps:

  • Right-click on your Epic Games launcher desktop shortcut
  • Select “Properties”
  • In the line labeled “Target,” add the following to the very end (after the quotation mark): -SkipBuildPatchPrereq
  • It should look something like this: “C:\Program Files\Epic Games\Launcher\Portal\Binaries\Win64\EpicGamesLauncher.exe” -SkipBuildPatchPrereq
  • Click “Apply”
  • Double click the shortcut to run the launcher and try again

it didnt work for me, i got an error saying that the target path is invalid but maybe this works for others with this same problem


  1. It works for me Windows 10 Home 1903.
    I guess I know what you are doing wrong. There should be a space between target and new script that you add at the end. Initially I did it too without space and had same error message as you had. Then I gave a space and it worked.

    “C:\Program Files\Epic Games\Launcher\Portal\Binaries\Win64\EpicGamesLauncher.exe”-SkipBuildPatchPrereq

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