Try again in few minutes. Maybe background indexing still running. Also, you must build your project in order to be able to use refactor->rename. Actually, it must be a bug in Xcode 9. Try 9.1 beta, refactor is not ideal, but works better there. this maybe helpful: https://forums.developer.apple.com/thread/80331 UPDATE: Close Xcode Go to ~/Library/Developer/Xcode/DerivedData and … Read more
Unpair the device and pair it again from xcode -> Window -> Devices will solve this issue. Posted as answer after the confirmation from @brettf.
Workaround: Restart Xcode. This has not been resolved yet as of January 2018 (Xcode 9.2).
I found out that I accidentally opened the ProjectName.xcodeproj file rather than the ProjectName.xcworkspace file. Open the xcworkspace file, project will start working again!
You can use the Codable interface with CoreData objects to encode and decode data, however it’s not as automatic as when used with plain old swift objects. Here’s how you can implement JSON Decoding directly with Core Data objects: First, you make your object implement Codable. This interface must be defined on the object, and … Read more
An Apple engineer reached out about this… Those of you with cdtool errors in Xcode 8, I suspect you installed the iOS 10.3 Simulator runtime from Xcode 9. It was discovered this week that this causes a problem with cdtool in Xcode 8.3. You can work around that by moving iOS 10.3.simruntime aside and restarting … 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.
If issue is on OS Mojave and you are trying, like me to run tests on older Xcode version (lower than 10.0), make sure that in your scheme, when you select Test, Debug executable is disabled You won’t be able to debug tests from this point
There are some issues with safe area layout and backwards compatibility. See my comment over here. You might be able to work around the issues with additional constraints like a 1000 priority >= 20.0 to superview.top and a 750 priority == safearea.top. If you always show a status bar, that should fix things. A better … Read more
The solution for me was to set the team in General settings of the target and in General settings of the Tests.