In UE 5 I keep getting this error Unable to build while Live Coding is active

Maybe this is a solution, I choose DebugGame Editor profile

I think you can disable live coding in editor settings. In another hand, I've used since months it , it works rather well and it is a real time saver for UE C++ game dev

Live coding is enabled on EU5 by default. This feature requires building from Unreal instead of from the IDE.

To initiate a build with live coding enabled, press CTRL+ALT+F11.

Source: https://docs.unrealengine.com/5.0/en-US/using-live-coding-to-recompile-unreal-engine-applications-at-runtime/