Failed to open descriptor file for *.uproject

I’m trying to setup a BuildMachine to run a predefined test map. I followed this guide:

The problem is when I try to run “UE4Editor.exe Foo.uproject /Game/Maps/FooMap - game” I get an error message: “Failed to open descriptor file for Foo.uproject”

I can’t find any way to figure out the cause of this since it doesn’t log anything to console…

Any help?


i have the same problem

Hi ,

Which version of the editor are you using? Also, please post your dxdiag (system specs if you’re on a Mac).

Also, when you get this error are you only running one version of the editor?

Hi felipelira,

If you are still experiencing this issue or if you have found a solution, please post here to let us know.



Hi everyone,

We haven’t heard back from you in a few days, so we are marking this post as resolved for tracking purposes. If you’re still experiencing this issue, please feel free to post back here with additional information.