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eclipsescalastdinscala-ide

import scala.io.StdIn

I'm using Eclipse ScalaIDE and for some reason I'm not able to

import scala.io.StdIn

I'm getting a red squiggly that tells me:

object StdIn is not a member of package io

And I'm seeing that it's not in that scala.io jar file. The ScalaDoc, however says it should be there. I've tried both scala 2.10.4 and 2.11.5. I've used the Eclipse ScalaIDE to create the scala project and I've also created an sbt eclipse project directly using the scalasbt.plugin which I use all the time to manage ScalaIDE dependencies. 

sbt "eclipse with-source=true"

Neither way is getting it.

I'm currently taking the Coursera Reactive Programming course and an assignment file has this import. I'm able do compile the project with sbt directly, but Eclipse ScalaIDE is not doing the job. Any clues? There may be good reason why not to use scala.io.StdIn, but my question is why can I not get it to import in the ScalaIDE?

thank you

Solution

  • scala.io.StdIn is new in scala 2.11.x and does not exist in previous versions.

    The problem you are likely encountering is that ScalaIDE is not picking up the scala version you are specifying. Since you say that you tried it with 2.10.4, it probably still has that cached or set somewhere and it's failing because it cannot find the specified class.