Play! framework - views aren't compiled?

Question

I created a new project and working with eclipse (used eclipsify command).
basically, I moved the app directory from an old project to the new

Answer 1

For Java Play Framework v2.4.6 (activator v1.3.7) with Eclipse Mars:

So that you will not have a "can not resolve error" with your viewTopic.render(), you can add this to your .classpath or right-click on your project -> Build Path -> Configure Build Path -> Add Class Folder and make it point to target/scala-2.11/classes.