title: Intellij-idea Debugger - Coroutine tab : "An error occurred on fetching information"
body: <p>I'm trying to do some coroutine example represented on : <a href="https://github.com/Kotlin/kotlinx.coroutines/blob/master/kotlinx-coroutines-core/jvm/test/guide/example-basic-02.kt" rel="nofollow noreferrer">https://github.com/Kotlin/kotlinx.coroutines/blob/master/kotlinx-coroutines-core/jvm/test/guide/example-basic-02.kt</a></p>
  <p>and It's debugger not working properly.</p>
  <p><a href="https://i.stack.imgur.com/vSkeH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vSkeH.png" alt="Intellij screenshot" /></a></p>
  <p>As you see, even code about coroutine like 'runBlocking' or 'launch' is not detected by intellisense,
  I don't know what is my problem.</p>
  <p>First my project is kotlin Console program, and</p>
  <p>What I've done to import kotlinx.coroutine to my project are :</p>
  <ol>
  <li><p>at Project Structure, Module downloaded org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.0-RC from Maven, when downloading checked Trasitive-something and Source, and added at library.</p>
  </li>
  <li><p>at Settings -&gt; Build -&gt; Kotlin compiler, changed language version and API version to 1.5, which is experimental version of Kotlin</p>
  </li>
  <li><p>at Project tool and build.gradle.kts, added
  implementation(&quot;org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.0-RC&quot;) at dependencies,
  kotlin(&quot;jvm&quot;) version &quot;1.5.0&quot; at plugins</p>
  </li>
  </ol>
  <p>Just run projects works well, but I can't use any context menu when using code about coroutine and as you know, it's really annoying me. any help would be appreciated.</p>