iOS debug - Process finished with exit code 0

I can't get my debugger working with AppCode on my desktop Mac any more.

The problem started about 4 months ago, where every time I ran the debugger it would fail and I would get the "Process finished with exit code 0" message

I was happy to wait to see if anything was fixed in the next update. I've now update to 2019.2 and the problem is still there.

I have reinstalled xcode. and appcode. With appcode I deleted every file associated with appcode and still nothing changed.

I also cleared my caches on both xcode and appcode with no succeess.

Any help here would be appreciated