After several years' lapse, I am coming back into app development for iPhone. Here's what I did: Renewed my membership to Apple developer I created a wildcard identifier, "me.joymaker.*" I created a certificate Using Xcode, I introduced my newest iPhone (a 12 mini) to Apple developer. Unlike my older models, this one has a UDID with a hyphen in it. To get it to take the UDID I had to remove the-and then paste the remaining continuous number into the field. But then it accepted it, and showed it back to me complete with hyphen. I created a development provisioning profile using that certificate and ID, checking the box that said "Select all", so that every device registered to my account was included. Using Xcode, I tried to upload the provisioning profile to the phone. OOPS. Xcode replies, "Failed to install one or more provisioning profiles on the device. Please ensure the provisioning profile is configured for this device." Yes, I am very that it was! There was an older identifier in the account, left over from years ago, named "XCode: Wildcard AppID", with an identifier of simply '*'. I tried building a provisioning profile with that one. Same results. Now what? How to diagnose, how to pursue this? BTW, although XCode sees this phone without difficulty, Music and Finder don’t. Relevant?? See this question for more details.

After being without a Mac for nearly 2 years, I have installed a new system (Big Sur) and downloaded Xcode 12, a great leap forward from the Xcode 9 that I was running on the Mac that died. Now I try to revive a project from 2017. I'm trying to adjust the settings to use a new and appropriate target OS. Following all the documentation I can find online, I would expect to see settings look something like this: But all I can get is some sort of raw code that looks like this. What am I doing wrong, and is there a way to fix it and get the proper settings view back?