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foottoby's avatar
foottoby
Explorer
2 years ago
Solved

Unknown Cook Failure when launching on Quest 3 from Unreal 5

I am trying to launch an Unreal project on Quest 3, but I always get the error PackagingResults: Error: Launch failed! Unknown Cook Failure. I have tried in two separate projects, one is empty and on...
  • Helder_Vinicius's avatar
    Helder_Vinicius
    2 years ago

    This new log shows this new information:

     

    Cook failed.

    (see C:\Users\foott\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.3\Log.txt for full exception trace)
     

    UnauthorizedAccessException: Access to the path 'C:\Program Files\Epic Games\UE_5.3\Engine\Programs\AutomationTool\Saved' is denied.

     
    Is there any chance this folder is protected, or your windows security settings are messing up and preventing acess to that directory?

Helder_Vinicius's avatar
Helder_Vinicius
Expert Protege
2 years ago

This new log shows this new information:

 

Cook failed.

(see C:\Users\foott\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.3\Log.txt for full exception trace)
 

UnauthorizedAccessException: Access to the path 'C:\Program Files\Epic Games\UE_5.3\Engine\Programs\AutomationTool\Saved' is denied.

 
Is there any chance this folder is protected, or your windows security settings are messing up and preventing acess to that directory?

foottoby's avatar
foottoby
Explorer
2 years ago

Thanks so much for looking through that, I tried to pick it apart, but missed that line. There is certainly a good chance that security settings are causing issues as this is my company laptop. When I browse to that directory there is no AutomationTool directory. Presumably that is created during the cook packaging process? I will raise a ticket with IT to see what might be causing the access issues.