title: Upgrade MS VS2013 to MS VS2015 Error CS0234 The type or namespace name 'Reporting' does not exist in the namespace 'Microsoft'
body: <p>Both Question and Solution included here.</p>
  
  <p>When opening a Microsoft Windows Application MS VS2013 C# Professional in MS VS2015 C# Professional, the following error displayed:<br>
  Error CS0234 The type or namespace name 'Reporting' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?)</p>
  
  <p>In VS2015, under Solution Explorer, under References, for Microsoft.ReportViewer.Common and Assembly Microsoft.ReportViewer.WinForms, the paths were missing under their Properties.  The paths are not editable.  </p>
  
  <p>To solve this problem, under References, delete Microsoft.ReportViewer.Common and Assembly Microsoft.ReportViewer.WinForms.  Then re-add these references (found under Extensions).  The paths were automatically entered, and the compiling errors disappeared.</p>