Error: Could not build Objective-C module 'Firebase'

Question

When I compile the application I get an error equal to this:

Could not build Objective-C module 'Firebase'

This error appear in import Firebase of my file swift.

Answer 1

There is only one way to solve this issue.

1. Quit Xcode.
2. Delete project's temp files located at ~/Library/Developer/Xcode/DerivedData
3. Delete ProjectName.xcworkspace
4. Delete Podfile.lock file and Pods folder
5. Run pod install.
6. Open the newly created ProjectName.xcworkspace file and build.