When Application is missing initial view confusing variable null0 is undeclared warning occurs

If the initial view is missing from the application a warning is produced when compiling:
App.js:93: WARNING - variable null0 is undeclared
null0,
^^^^^

and the build is marked as successful.

Sample code to reproduce:
```

```

When run the program produces an RTE "Uncaught ReferenceError: null0 is not defined" at the same line number.

This is an user error obviously but would be nice if an error was raised not a warning or better still a warning/error stating you are missing the initialview.