If you can open the Project You can simply change your Project Format (like the image) Click to your Project File in xcode and change it If you can’t open the project (projectName.xcodeproj) normally Control-click on the project file, select Show Package Contents, and then open your project.pbxproj file and make the change for: compatibilityVersion … Read more
An update to Alex’s answer: In my case it was a React-Native project after adding a Swift Pods library. Maybe just the step 2 can work: Adding a new Swift file and a Brigde header: 1) File -> New -> File 2) Select Swift File 3) Confirm Create Bridging Header Go to Build Settings and … Read more
As mentioned in the comments, I had to do two things: changing Compilation Mode to Whole Module inside Project settings/Build Settings: reordering the files under Project settings/Build Phases/Compile Sources. Specifically, I brought the files that had an error to the front of the list. Protip: if you search for the name of the file and … Read more
Another option is to download the 11.3 device support at: iOS 11.3 (15E217) And don’t forget to remove “(15E217)” from folder name, so it became “11.3”. Restart Xcode afterwards. Where to paste it according to comment of EdwardM For those that don’t know where to paste the contents of the zipped file. Find your Applications … Read more
I was hitting the same issue for a week. Since today, I change the Xcode Version back to Xcode 9.2 – and the problem was resolved. It seems like this is a bug of Xcode 9.3, I just filed an issue to Apple yesterday. No reply has been received.
This bug/debug note is present in iOS SDK bundled with Xcode 9.3+ Update: not fixed in Xcode 9.4.1 (9F2000) Update: not fixed in Xcode 10 (10A255) Update: not fixed in Xcode 11 betas I think you can safely ignore it. New versions of iOS/macOS sometimes contain informational debugging messages, and they generally get removed at … Read more