title: IntelliJ Scala configuration issue
body: <p>So, I downloaded Scala and configured paths, I can run Scala console from terminal, Scala plugin is installed and <strong>"hello world" is running</strong>...</p>
  
  <p>The problem is that, when I write a "hello world" program:</p>
  
  <pre><code>object First {
     def main(args: Array[String]): Unit = {
        println(12)
     }
  }
  </code></pre>
  
  <p>it says: <code>Cannot resolve symbol println</code></p>
  
  <p>As I said, I can run this program and it prints out 12... Also, if I create a List or an array it "cannot resolve symbol" but everything runs with no problem at all...</p>
  
  <p>In most cases I've found, there was problem with Java set up, but that's not the case here...</p>