A heads-up for people toying with upgrading projects to the release candidate versions of Angular2:
They moved modules from
@angular. If you accidentally mix and match versions (for example, you forgot to update your bootstrap file, but you did update your application file), you are in for pain. You will get obscure errors about directive annotations not being present on your application class.
I recommend completely removing the old ‘angular2’ directory out of node_modules. That way you will break the build until you update everything in sync.