play 2.1 : Create yout first projetc with IntelliJ Tips

Create a project with Play is easy :

$ play new my-app 
$ cd my-app 
$ play idea


However, I had some diificulties with how to import in IntelliJ.In the documentation, it says that you have to import a module.But it doesn't work for me.
To succes, I've just done the following :

File --> Open

And now it works every times :-)