Why is Intellij code auto completion in JSF with Primefaces not working?

I have installed intellij IDEA Ultimate Edition latest version and started to test the compatibility of it with primefaces version 6.2. If it could be compatible with primeface we are gonna switch from eclips to intellij. unfortunatly i cann't figure out how to get code autocomplition to work for primefaces. I have done alreaday the following.

1. created maven project.
2. added primeface dependency in pom.
3. Added primeface framework by right clicking on the project and choosing Add framework support....

Does any one know how to fix this issue?

Does anyone know the best IDEA for working with primeface?

I did solve it by the following. I got inspiration from here.

1. Added primeface framework by right clicking on the project and choosing Add framework support....
2. Added JSF facet to my web modules from File | Project Structure | Modules - module - JSF facet Ctrl+Shift+Alt+S
3. Restarting intellij IDEA