Would you mind to provide your detailed instructions in what you did here?
@steve_capie, the steps I used are the same as posted at the very top of this thread. I double checked it just now and am sure those are the same steps I am still using.
I know you said that the app name and the project name need to be the same. What about the bundle ID found in your app’s info.plist and the bundle id that is used when your create your Xcode project. Do these have to be exactly the same (e.g. case sensitive)?
Finally, yes deleting all devices and recreating an iPhone 5 one in xcode and the app started properly. I still can’t get rid of the black bars on the side though. And the launch image is loaded sideways for some reason.