title: object mockito is not a member of package org
body: <p>Relatively new to sbt and Mockito. </p>
  
  <p>I want to use Mockito in tests, but I'm getting errors related to the Mockito imports when I compile the tests</p>
  
  <p>Imports in test file:</p>
  
  <pre><code>import org.scalatest._
  import org.mockito.Mockito._
  import org.scalatest.mockito.MockitoSugar
  </code></pre>
  
  <p>sbt file: </p>
  
  <pre><code>name := "blah"
  
  version := "0.1"
  
  scalaVersion := "2.13.0"
  
  libraryDependencies += "org.scalactic" %% "scalactic" % "3.0.8"
  libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.8" % "test"
  libraryDependencies += "org.mockito" % "mockito-core" % "1.8.5" % "test"
  </code></pre>
  
  <p>I get these error messages when the tests (fail to) compile:</p>
  
  <p><code>object mockito is not a member of package org [error] import org.mockito.Mockito._</code></p>
  
  <p>and also:</p>
  
  <p><code>Symbol 'type org.mockito.MockSettings' is missing from the classpath.
   [error] This symbol is required by 'value org.scalatest.mockito.MockitoSugar.mockSettings'.</code></p>
  
  <p>I've had a play around with changing some of the versions of scalatest and mockito in the sbt file, but not really if that's getting at the root of the problem or not.</p>
  
  <p>Thanks for any help!</p>