On my MacMini (3 GHz 6-Core Intel Core i5) Xcode, Garageband an iMovie did not launch and opening a terminal window also issued the missing framework error. I manually installed XcodeSystemResources.pkg, MobileDeviceDevelopment.pkg and MobileDevice.pkg in this order. These packages are found in the Xcode.app bundle Xcode.app/Contents/Resources/Packages/... Now the Apps are launching. No idea if there are problems left.