New version of Xcode sets iOS minimum deployment target to iOS 12.0 -- deprecation errors

[claus-zinn]

With Xcode Version 15.0 (15A240d), it seems that the iOS minimum deployment target is now set to iOS 12.0. This creates quite a few compilation errors, e.g.,

NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data];

fires this error:
'initForReadingWithData:' is deprecated: first deprecated in iOS 12.0 - Use -initForReadingFromData:error: instead

in ORKTaskViewController (line 254).

As a result, I cannot compile my app using ResearchKit using the newest Xcode.

[Pariecemckinney-apple]

Hello @claus-zinn, i’m happy to help out here. It looks like you might be using an older version of ResearchKit. If you look at the commit below you can see that we actually bumped our minimum version to IOS 13.
743b773

We also fixed the issue you mentioned above with this commit:
bd60d94

I would suggest updating ResearchKit so that you’ll have access to these updates. If you need help with that please let me know and we can get it figured out for you? Thanks again for reaching out and I hope the details above were helpful.