Lipo Error!! can't open input file

Question

My application was working perfectly fine, then I started integrating SDK for push notification and stop the integration in between. I even deleted the SDK from my project a

Answer 1

i tried to re-select provisioning profile signing for both debug and release. this did fix the issue.

Answer 2

This generally happens after changing the Deployment Targets in XCode and is easily solved by "Product > Clean" before attempting a Build.

Answer 3

New potential answer for Swift: we isolated this error down to a single usage of the nil coalescing operator (??) in a category file. The operator is used elsewhere in our project without a problem, but in this specific file, removing it fixed the lipo error.