Debugging

• I started my app and all I see is a blank page

  This probably means that there's an error in your code. Certain kind of errors are not detected at compile time but are instead detected at run time by Angular. We hope to fix this in the future. In the meantime, if you see a blank page, you can see what the error is by opening the developer tools console in your browser.

• Concept is returning an undefined response

  This probably means that the concept had an error on startup. Look at the logs for errors.