MGCB editor fails to build saying: "Build Failed: mgcb is not in the search path!"

I’m using Ubuntu and recently updated from 20.04 to 21.04. This caused the MGCB editor to stop working due to an already fixed issue involving an newer version of Gtk Sharp. This made me upgrade to a newer development version of the editor. However, now whenever I try to build anything it just gives the output Build Failed: mgcb is not in the search path!. I have tried uninstalling and reinstalling dotnet and monogame numerous times and nothing has worked. I have seen this thread with the same issue but their solution did not help in my case.

Does anybody know what might be causing this issue or how I could solve it?


I have stopped using the content pipeline. Instead I load images directly using this library. It works on all platforms and I had never problems. My game euns with the same code on windows, linux and macOS.