title: flutter packages get fails, version solving failed
body: <p>I have the following issue: I have a flutter project opened with Android Studio. Inside Android Studio's terminal I run <code>flutter packages get</code></p>
  
  <p>Command fails with the following error:</p>
  
  <pre><code>Running "flutter packages get" in flutterfoodorderingapp...      
  The current Dart SDK version is 2.1.0-dev.4.0.flutter-050561fd82.
  
  Because food_ordering_app depends on flutter_map &lt;0.1.0 which requires 
  SDK version &gt;=1.8.0 &lt;2.0.0, version solving failed.                                                                          
  pub get failed (1)
  </code></pre>
  
  <p>Any ideas how to solve it?</p>