title: Xcode fails app install after iOS8.4 and Xcode 6.4 updates
body: <p>Out of nothing my app won't install on my test device (iPhone 6 on 8.4) anymore. I get a message saying "App installation failed. An unknown error has occurred". I updated today to iOS 8.4 and Xcode 6.4 could this have something to do with it? </p>
  
  <p>App still runs on the simulator. Also if I change the name of the top folder I don't get the error and it works fine. Is there some path that I need to change and I am missing?</p>