bundle format unrecognized, invalid, or unsuitable PodFile

If it was complaining about a particular Pod and being unable to codesign it.

Below things work for me:

1. Select the Pods Project In the main editor window, select the Pod in the targets dropdown
2. Under the general tab, and under the identity header, click choose Info.plist file
3. Select the plist file for the Pod

The project should now build. For some reason, it seems to lose this setting, or not be able to reference it's own plist file.

Not 100% sure but I hope it helps someone.

Source : Stackoverflow