I assume you upload the certificate and key as files. You should try pasting, which does some client-side checks in JavaScript. If that yields no different results, you could try to use the API directly, which may provide more verbose error messages.
https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1beta/apps.authorizedCertificates/create https://cloud.google.com/appengine/docs/admin-api/reference/rest/v1beta/apps.authorizedCertificates#CertificateRawData Works in the browser ("Try this API"). If that goes through, the other steps like domain-mapping can still be done from the regular App Engine settings page. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/b058e2f6-1dbe-47fc-93df-4a76810b1312%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
