title: start over iOS app
body: <p>I have an app published in the store, which i want to change so much its internal working, that i decided to start over. I successfully finished the new version of my app, but when i install the previous version of the app, and run the new version from xcode to check if everything is compatible, i get "Could not change executable permissions on the application".</p>
  
  <p>What i did was to change the bundle identifier of the new version of the app to match the old one, but i cant get it to run under the same name. Do I need to do something else? The app runs great if the old one isn't installed, but when I have the old one installed, and I want to run the new one, so it replaces the old one, i get the error i mentioned above.</p>
  
  <p>Thanks</p>