Errors: XPC connection interrupted | Terminating since there is no system app

Question

I recently updated to Xcode 8.1 and coding in Swift 3.

I am developing an iOS app and I get the following errors when the iPad Simulator is placed in the Landscape orientation. I do not get the errors when I use the iPhone Simulator in the Landscape orietation.

XPC connection interrupted | Terminating since there is no system app.

On Xcode 8.0, I did not get these errors. I have restarted my Mac Mini and Reset the Simulator to see if that would clear the errors. Neither worked.

Answer 1

I experienced this behaviour in 2 cases when migrating the code to swift 3:

1. Forgot to add @escaping:

   sendReceipt(completion: @escaping (Receipt) -> () ){
       // var to retain the closure
       self.completion = completion
   }
   

2. Adding a value to a Lazy var.

   lazy var foo : Example = { return Example() }()
   
   // later in another method
   foo = Example()
   

Answer 2

I found that when I upgraded to Xcode 8.1, I could only target iOS 9.2 (error went away) and not iOS 9.0 as I had done previously.

I did not put an Apple bug report in the system.