Xcode debug executable failed

Question

I am working on a sketch plugin project with xcode. A sketch plugin can be understood as a framework bundle. In the scheme of my project, i set the Execatable to Sketch.app ,and i also checed the Debug executable box. When i run my project, i got Message from debugger: unable to attach from the console and the Sketch.app cannot be opened. But when the Debug executable box is not checked, my project worked. But without the Debug executable be checked, i cannot debug my code.
Can someone help me out ?
The xcode version is 10.1 and the my mac version is 10.14.6.
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Answer 1

Please check this solution
1. Check if all frameworks are loaded successfully
2. File Menu -> Project Settings -> "Legacy Build System".
3. Product -> Scheme -> Edit Scheme... -> Run -> Info -> Launch = Automatically

Answer 2

1. Quit Xcode
2. Open the Terminal.app
3. rm -rf ~/Library/Developer/Xcode
4. I can Xcode debugging