I have an Xcode project with unit tests. The product Tests.xctest is red. The unit tests build and run as debug versions. Why is it shown in red?

When I look into the products folder and drill down into the packages I see a unix executable Tests for the debug build but not for the release build. If I set it up in the scheme to build Test for release the build process fails saying failed to load module .

I'm thinking that it maybe is because the release version isn't building, but not sure why that is either. Why can't it find the module when I set both run and test to release? It builds and runs for release but tests won't build.

Ideas?

Update: I created a testapp and the problem persists: