플레이 프레임워크 IDE에 에러가 날때.

굉장히 쉽게 처리하는 방법이다.

I had the same issue, also with Scala IDE 4.0.0 . I followed mkurz instuctions and they worked like a charm. But instead of changing the .classpath file in the project folder manually I used Eclipse interface:

• In the top menu of the main window, click on Project and then on Properties.
• In the Properties window, click on Java Build Path option (options list is on the left)
• In the Source tab, click on Add Folder... button.
• In the Source Folder Selection window, choose the target/scala-2.11/twirl/main folder, so it is included in the compilation path. Click Ok button.
• Click Ok in the Properties window.

Now the project should compile just fine :) . With that I was able to finish the play setup example in Scala IDE website