Getting “Cannot verify client. (3000)” when trying to upload archive from Xcode to itunesConnect

Question

Just updated to Xcode 7.1 and getting this error. Was able to upload fine using 7.0.1

Answer 1

I tried most of the things here, but what finally did it for me was using the Application Loader instead of trying to upload my app from the Organizer.

Once I did it from the Application Loader I got an error message related to this: ITMS-90535 Unable to publish iOS app with latest Google Signin SDK, which was the real cause of the error.