I get this message when trying to do a release build for Andriod in Ionic Pro. It has worked fine up until now and I have not changed anything for the keys and app signing credentials.
added 669 packages in 74.57s
$ npm install --quiet --no-optional success
Error retrieving app signing credentials.
Running after script...
$ run "clean-up"
Running Stage clean-up for Job: 5278988
ERROR: Job failed: exit status 1