Apple periodically makes changes to requirements for apps uploaded to the App Store, we are typically not notified of such changes in advance but regularly monitor these requirements and make corresponding changes in our build tooling ASAP. Some changes will require a new version of MyEclipse, others are remotely fixed on the server side, without a MyEclipse update.
Known Errors:
This bundle is invalid. Apple is not accepting applications built this version of the SDK or Xcode.
Fixed on September 20, 2014: This fix is available to all users of MyEclipse 2013 via a server side fix, no MyEclipse update is required.