It's just fixed! The reason was very simple. My gcloud command version was too old. (0.7.x ?) So I installed latest Google Cloud SDK(122.0.0). Then the problem was fixed.
Bottle neck of the problem is Container Registry, I think. Old gcloud command couldn't treat Container Registry, so the docker image also couldn't be pushed on the registry. # As long as I saw the debug log of deploy command, the processing of pushing docker image on Container Registry seemed to be success. Maybe its error handling in aedeploy command should be fixed. It's a trap. :( Thanks -- 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 post to this group, send email to google-appengine@googlegroups.com. 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/336ae8eb-dd12-4e75-a3c9-b360a63b7c3a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.