Any way to completely start over? (Ubuntu 18.04)

[potatomutt]

Is there a way to safely, completely, remove carla and the UnrealEngine after successfully make PythonAPI-ing?
I got that to work only to find out I was working from UE 4_26 instead of 4_24 and now make launch is probably never going to work in this state.

I want to clear up everything and start from scratch, but I don't see a way to revert back to that state.

[corkyw10]

You should be able to delete the directory where you built Unreal and then when you want to build CARLA again, run make clean before starting the process to remove any intermediate binaries that were created during the previous build.