Xcode 10.2, Swift 5, Command compileSwift failed while build the program with Release Scheme

Question

I\'m using Xcode 10.2, Swift 5.

With Debug scheme, no issue happens, but with Release scheme when I build or archive, it shows Command compileSwift failed with a non

Answer 1

In my case it just appeared probably because I ran project again while it was building. So what I did was not only clean but also folder clean my project using

SHITF + ALT + COMMAND  + K 

also I deleted derived data and the project was up and running again.