Angular2 Selector did not match any elements with bundle and ECM6

Question

I have a very simple angular2 project, configured to work with Gulp, Bundle and ECM6. Bundle will create a big file which contains the translated ECM5 of angular plus my app.

Answer 1

The problem was that I was including the bundle.js before the mainapp component was defined in the HTML. This fixed the issue.

Update:

Seems to also solve the problem regardless of the order of the elements.