Are you using Google Apps to authenticate users? If you are, try signing in with a Google Apps account (setting it as GAE admin before). I noticed that I can only use the Datastore-Admin with an account of my Google-Apps-domain, not a GAE-admin account of another domain.
I guess it's because the Datastore Admin is more on the "application-side" rather than the "GAE-admin-side" and is using the standard authentication method of your app, not the one that the GAE-dashboard is using. My url looks something like this (same as yours) and works: http://1.latest.xxx.appspot.com/_ah/datastore_admin/?app_id=xxx -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
