IntelliJ Scala worksheet - package names don't correspond to directories -


i'm doing martin odersky's course on coursera.com , has class defined within scala worksheet this:

object intsets {   println("welcome scala ws") }  abstract class intset {   def incl(x: int): intset   def contains(x: int): boolean }

and when in worksheet warning: "package names doesn't correspond directories structure, may cause problems resolve classes file". project freshly created using new project -> scala -> sbt. intellij 2017.

here screenshot: enter image description here


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