Will install Watch App called with bad bundle identifier '(null)'

Question

When I use xcode 7 beta 5 and wanna to run a simple demo on watch simulator. It prompts this "Will install Watch App called with bad bundle identifier '(null)'". I cannot find it anywhere. Does anyone know this?

Answer 1

The problem comes from the fact that the iOS app is not compiled when Xcode tries to launch the Apple Watch App + Extension.

In order to solve this problem, as said in the comments of the question, add the iOS App to the Build Target (edit scheme, select the Build entry, and add the iOS target).