title: DefinitionInvalidException: The definition of the report '' is invalid
body: <p>I get the following error in my reportviewer report when I upgraded from Visual Studio 2015 Community to Visual Studio 2017 Community.</p>
  
  <p>Microsoft.Reporting.WinForms.LocalProcessingException: 'An error occurred during local report processing.'</p>
  
  <p>Inner Exception
  DefinitionInvalidException: The definition of the report '' is invalid.</p>