Hi,
It’s been a while since I’ve worked on this iOS app.
So I loaded it up and I cannot run it in the bug I’m sure there’s something I have to do to enable that but I am no idea what that would be.
It’s probably been a year or two since I’ve had this app Xojo.
Apparently, you can hover your mouse over the run button and get a tooltip with what the problem is. It’s a horrible user interface design, and I just found out about this like a week ago after what five years? But it’s something.
Gosh information is just scattered literally everywhere for iOS. That must be so frustrating.
According to the system requirements page, Xcode 11 requires you use 2019r2.
"You are probably seeing any one of them because you previously installed some fake utility apps like Advanced Mac Cleaner, Photo Cleaner, Mac Cleanup Pro and/or AdwareCleaner. or something similar. This is malware which is malicious software. If you have any of these programs, uninstall them. This is a known scam targeting Mac users.
It is probably that these files were on your computer and you started seeing any of these popups after you upgraded to macOS Catalina because, during your Catalina upgrade process, all of your files were checked and macOS labeled them as dangerous."