It seems to fail on the cron upload. Have you checked your cron.xml syntax?
My problem was that I had "every day 01:00 synchronized". Removing "synchronize" resolved the issue. Also try with "every 1 minutes synchronized" instead of "every 1 minute synchronized". This did work for me without errors on de dev server. -- 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-j...@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.
