Xcode build fails with “fatal error: malformed or corrupted AST file” Crashlytics.h

Question

I recently enabled modules in my Xcode project build settings (\"Enable Modules (C and Objective-C)\") and now I frequently get the below build error. It works the next time I b

Answer 1

First, try going to Product -> Clean menu in Xcode. Then rebuild when it finishes.

If that doesn't work, go to your [Name]-Prefix.pch file in the Supporting Files folder, and delete the #import line. Build. It will have errors, it's ok, now start typing it again and make sure to select the right choice from the drop-down suggest menu so it auto-fills the rest of the line for you. (This step worked for me).

Good luck! Love it when Xcode goes weird like this :)