Thanks for your helpful post. I followed your Manual Code Signing Example - https://developer.apple.com/forums/thread/130855 post step by step and I signed my files with "Apple Distribution: TTT", is that OK? then I replaced the app with path/to/myapp.xcarchive/Products/Applications/myapp.app. After that, I opened Organizer to upload myapp to the App Store. Now I don't get sand-boxing errors for my Command-line tools, but library errors exist. (my tools depends on libraries) ERROR ITMS-90000: "This bundle is invalid. The executable code in [myapp.app/Contents/Frameworks/1.dylib, myapp.app/Contents/Frameworks/2.dylib, myapp.app/Contents/Frameworks/3.dylib] contain unsupported content." How can I resolve this problem? Thanks