Possible 5.5 Bug in RunMutableCommandlet directory

General Feedback & Requests
21

I was having the same issue. Deleting the obj file fixed it for me.

C:\EpicGames\UE_5.5\Engine\Source\Programs\AutomationTool\Mutable\RunMutableCommandlet\obj

Sometimes, the obj folder in a project can cause problems because it holds temporary files that the system uses while building. If these files get messed up, locked by something else, or don’t match the current setup, it can create errors. By deleting the obj folder, you force the system to rebuild those files from scratch, which usually clears up any issues. It’s like hitting the reset button for the build process!

2 Likes
22

Thank you. It works for me

23

Thank you, this fixed the problem for me (even though the folder reverts back to read-only afterwards, it still worked).

To reiterate what I did:

  • Right click → Properties → Uncheck Read-only for this folder UE_5.5\Engine\Source\Programs\AutomationTool\Mutable\RunMutableCommandlet
  • Then immediately in Rider: Tools → NuGet → NuGet Restore

And now it finally builds without errors :slight_smile:

24

This worked for me too. Much appreciated.