"Message from the debugger: cannot connect" when running tests in an OSX application

Question

I cannot run my tests in my OSX application - the project builds fine, but when I run Product → Test in Xcode 8.2. It says: Message from debugger: unable to attach

How to make my tests work again?

Answer 1

In the end, I had to “repackage” my Xcode project using these steps that sorted it. https://medium.com/@mobilebloke/xcode-8-going-slow-on-swift-3-have-you-tried-repotting-your-project-88d0066d2445#.idcdv2dd3

I know this is not necessarily a fix, but after trying:

• Add certificate deletion

• , ...

Answer 2

. , , "" . " " ( - ). , , .