Realm - module file was created by an older version of compiler

Question

I use latest version of xcode and swift 2.2. One of my projects, which I havent open for several month now not building, because of error module file was created by a

Answer 1

I faced the same issue when used Swift 3.2 in my project. After upgrading to Swift 4.0 issue disappeared. Cleaning project folder, derived data, restarting Mac - nothing helped.