I am hoping someone has had these errors and knows how to fix it.
This is the console output in Xcode 5 b4 that suddenly appeared:
Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk/System/Library/AccessibilityBundles/CertUIFramework.axbundle> (not loaded)
Temporary workaround: click iOS Simulator > Reset Content and Settings... and run again.
This error message may reappear at random. For me, it happens when I launch a different application. There are several threads in Apple dev forums and in StackOverflow about this problem, but none have a definitive answer. This seems to be a SDK error.
Updated: February 10, Xcode 5.1b5.