Can Run IOS App?

I have an IOS app that was written a couple of years ago and when I opened it in the current version of Xojo (2019r1), the Run button is disabled.

I’ve installed Xcode and downloaded and installed simulators for 12.0 and set the Command Line Tools to Xcode 10.1. I’ve also select the iPhone 5s (12.1) in the Simulator Device and the RUN button remains disabled.

Can someone tell me what I’m missing?

Disregard… a reboot resolved it.