Just upgraded to Xcode 6.1 today, and guess what: Now I'm having trouble submitting builds using the TestFlight desktop app. Here's the error I'm getting while the app starts building the IPA: error: /usr/bin/codesign --force --preserve-metadata=identifier,entitlements,resource-rules --sign 854059d45eed724593debef577a562e1ba96ab55 --resource-rules=/tmp/QYFSJIvu7W/Payload/XX.app/ResourceRules.plist