Can't run samples from parent directory

[HLGgithub]

Hello, I tried running rake from parent directory and I get: Terminating app due to uncaught exception 'NameError', reason: 'app_delegate.rb:7:in `application:didFinishLaunchingWithOptions:': uninitialized constant AppDelegate::GraphHostingView (NameError)

[benhill]

I get the same error.