I just downloaded IntelliJ 14.0.3 build 139.1117 and would like to use Scala related features. I can create Scala and SBT project without any problem. But when I tried to "Play 2.x" project, ti always pop up "sbt project name must be a valid scala identifier" even if the project name is perfectly valid. (please see the screenshot)
This issue happened on both Mac and Windows platform. Any suggestions?