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

I was able to fix it by opening the Runner workspace project in Xcode 10. Then navigate to File, Workspace Settings and change the build system to Legacy Build System.