Dumb installation error

Hi all, I am a newbie to this forum, been using the Arduino IDE for about 5 or 6 years. Looking forward to using XCODE instead.

After many wasted hours, I finally found ( by a light bulb moment ) the reason why any attempt at compiling my FIRST ever arduino code using Xcode failed .... with the MESSAGE " IDE not installed"
... the root cause was due to my habit of renaming the app "Arduino" as "Arduino_X_Y_Z" where X,Y and Z are the version number. It appears that unless the app name is simply "Arduino", at run-time the the app "doesn't exist". I guess the analogy is having an incorrect pathname/filename.