Okay, I think I finally narrowed down this bug that's been blocking me all day.
When you create a channel on the non-default version of a high-replication app you will get a InvalidChannelClientIdError when you attempt to send on that channel. http://code.google.com/p/googleappengine/issues/detail?id=5093 Sounds crazy, but that's what I narrowed it down to. -- 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.