You should rather run gcloud auth application-default login <https://cloud.google.com/sdk/gcloud/reference/auth/application-default/login>, if your intention is to acquire new user credentials to use for Application Default Credentials.
How did you grant roles to your user account, exactly? -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/a2ceff6d-1ab3-4dd9-a216-281de5075c46%40googlegroups.com.
