Hi Guys,I have a similar problem except I am trying to debug a plug-in (developed as a bundle) that is loaded by another application (which I do not develop). I have everything set up as I have for years but after upgrading to XCode 11 from XCode 9, I cannot get the main application to launch for debugging. When I Launch the application manually (which loads my bundle) and I try to attach to the application process from XCode, the same error occurs. The details I get areCould not attach to pid : “2121”Domain: IDEDebugSessionErrorDomainCode: 3Failure Reason: Error 1--Error 1Domain: IDEDebugSessionErrorDomainCode: 3--Any help would be much appreciated.Mike