SBT project refresh failed [IntelliJ, Scala, SBT] : <p>Whenever I try to enable auto-import in IntelliJ it always gives me this error:</p>

<pre><code>SBT 'Example' project refresh failed

Error while importing SBT project:
...
[warn] ==== public: tried
[warn]   https://repo1.maven.org/maven2/org/scalatest/scalatest_2.12/2.2.6/scalatest_2.12-2.2.6.pom
[info] Resolving org.scala-lang#scala-compiler;2.12.0 ...
[info] Resolving org.scala-lang#scala-reflect;2.12.0 ...
[info] Resolving org.scala-lang.modules#scala-xml_2.12;1.0.5 ...
[info] Resolving jline#jline;2.14.1 ...
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.scalatest#scalatest_2.12;2.2.6: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn] 
[warn]  Note: Unresolved dependencies path:
[warn]      org.scalatest:scalatest_2.12:2.2.6 (/Users/sarahbaka/Desktop/Scala/Example/build.sbt#L7-8)
[warn]        +- default:example_2.12:1.0
[trace] Stack trace suppressed: run 'last *:update' for the full output.
[trace] Stack trace suppressed: run 'last *:ssExtractDependencies' for the full output.
[error] (*:update) sbt.ResolveException: unresolved dependency: org.scalatest#scalatest_2.12;2.2.6: not found
[error] (*:ssExtractDependencies) sbt.ResolveException: unresolved dependency: org.scalatest#scalatest_2.12;2.2.6: not found
[error] Total time: 4 s, completed 08-Nov-2016 22:24:34&lt;/pre&gt;&lt;br/&gt;
</code></pre>

<p>I already installed the JetBrains Scala plugin, then opened a directory with an SBT build and reset/restarted my cache (File -> Invalidate Caches / Restart). But it still doesn't work! Does anyone know why?</p>
