“A valid provisioning profile matching the application's Identifier '' could not be found” error

Question

I am working on an app that I would like to put onto some iPads (not the App Store). I bought the developer license, and added the provisions on Xcode. Now when I try to b

Answer 1

In my case, I had to first BUILD the app with Cmd-B.

This popped up a keychain window access asking me to "Allow" (or "Always Allow") Xcode to access the keychain.

Only THEN could I actually run the program to launch it on my iPhone.

Apparently, hitting only run didn't do the trick.

(Btw, remember to first sign your app with the "iPhone Developer: Your Name ()" key.