Every time I run my project (macOS Cocoa App) I get this message in the Xcode console:
Message from debugger: unable to attach
I have already tried creating a new project (error still occurs), changing some „Signing settings“ (as mentioned in "Message from debugger: unable to attach" when running Tests on OSX app) and reinstalling Xcode.
Xcode Version: Version 10.1 (10B61)
OS: 10.13.6 (High Sierra)
Model identifier: iMac12,2