Cannot find symbol variable StoragePathMacros

I'm trying to implement PersistentStateComponent, and get the error "cannot find symbol variable StoragePathMacros" during compile when referencing it in an @State annotation for the file attribute. I'm using IntelliJ IDEA version 11.1.4. For example:

@State(

  name = "MySettings"

  storages = {

    @Storage( id = "myId", file = StoragePathMacros.WORKSPACE_FILE)

  }

)

Any suggestions?

Thanks in advance for your help.