title: How to decrease $(TargetFrameworkVersion) for FormsViewGroup.dll from (v7.1) to (v6.0) in Xamarin
body: <p>I am new to Xamarin. I have installed VisualStudio 2017 with Xamarin component and my android sdk is updated to Android (v6.0). I have created new Xamarin project and I am getting errors:</p>
  
  <pre><code>Severity    Code    Description Project File    Line    Suppression State
  Warning     The $(TargetFrameworkVersion) for Xamarin.Forms.Platform.dll(v7.1) is greater than the $(TargetFrameworkVersion) for your project (v6.0).
  You need to increase the $(TargetFrameworkVersion) for your project.    App2.Android    C:\(PATH-TO-REPOS)\repos\App2\App2\App2.Android\App2.Android.csproj     
  </code></pre>
  
  <p>I don't want to target (v7.1) please tell me where I can update the <code>$(TargetFrameworkVersion)</code> for <code>FormsViewGroup.dll</code> to target (v6.0).</p>
  
  <p>There is already a similar question raise by someone <a href="https://stackoverflow.com/questions/43736815/the-targetframeworkversion-for-formsviewgroup-dll-v7-1-is-greater-than-the">here</a>. But I didn't find any solution to decrease the version for FormsViewGroup.dll. Instead they suggested to update Android SDK But I don't want to target (v7.1).</p>
  
  <p>Please suggest me the solution to update the <code>$(TargetFrameworkVersion)</code> for <code>FormsViewGroup.dll</code> to target (v6.0).</p>
  
  <p>Thank you</p>