In this video I am showing how to fix "UnityException: Launching iOS project via Xcode4 failed. Check editor log for details." error which you get while building your project when you upgrade Xcode or Unity.
Here are the paths of the file that you will need :
Unity plist : /Applications/Unity/Unity.app/Contents/PlaybackEngines/iOSSupport/Tools/OSX/Unity4XC.xcplugin/Contents/Info.plist
Xcode plist : /Applications/Xcode.app/Contents/Info.plist
On this page of the site you can watch the video online UnityException: Launching iOS project via Xcode failed with a duration of hours minute second in good quality, which was uploaded by the user Chayan Vinayak 24 September 2014, share the link with friends and acquaintances, this video has already been watched 11,047 times on youtube and it was liked by 132 viewers. Enjoy your viewing!