404 when trying to create backup in a Google App Engine project
问题 Setup I encountered the 404 problem after following the unaccepted answers of the question AppEngine datastore - backup programatically I have enabled the Datastore Admin, as suggested by one of the answer provider. I can manually trigger a datastore backup in Google App Engine console and the backup runs without any failure. The code in this question lives in a module called 'app'. Not 'default'. The 404 Problem This is the cron job in cron.yaml. cron: - description: Regular backup url: /