Xcode 10 Error: Multiple commands produce for 'app' and 'appex'

Question

I got the recently discussed \"Xcode 10 Error: Multiple commands produce...\" error, but for the resulting app and appex file of my project. Does anyone have an idea what th

Answer 1

set "Build System" to "Legacy Build System" in "Shared Workspace Settings" which you can find in "File --> Workspace Settings"