I followed the getting start video on Jetbrains website to setup IntelliJ IDEA 13.1 Community Edition to work with Scala. Scala plugin v0.36.431 had been installed. While I crea
Normally it should create these folders automatically. It may take a while though - it takes couple of seconds in my case.
When creating project make sure you have selected Scala -> SBT, then proceed with the wizard.
Once the Finish is clicked, the project will be loaded. This part takes couple of seconds, and I can see no src/main/scala
nor src/test/scala
generated until it's done. Observe the bottom of the screen to see when it's done.
Once the process is finished, you'll see the folders.
If that's not the case, check the settings. You should have the Create directories for empty content roots automatically checked. You may want to check Use auto-import to automatically propagate changes in the build.sbt
.
After changing the settings (if the change is required) you may need to refresh the project, as seen in picture below.