This issue is tracked there: http://code.google.com/p/googleappengine/issues/detail?id=5474
If it is still not working for you can you add a comment with your appid ? Thanks in advance. On Wed, Aug 3, 2011 at 1:34 PM, Pambo Paschalides <already.l...@gmail.com> wrote: > Today, whenever I try to deploy my app, I get the following: > ... > Closing update: new version is ready to start serving. > Rolling back the update. > Error 503: --- begin server output --- > Application Busy (503) > Multiple clients are trying to modify the same application. > --- end server output --- > Moreover, I cannot modify any settings in my app. For example disabling the > app, or modifying in anything, results in message "Application > busy. Multiple clients are trying to modify the same application.". > What is going on here? :S > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-appengine/-/Ha5DuRac-CYJ. > To post to this group, send email to google-appengine@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- Johan Euphrosine (proppy) Developer Programs Engineer Google Developer Relations -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.