title: Cannot import .rptproj in VS2015 - says it's "Unsupported". Latest SSDT is installed
body: <p>I am trying to convert some older VS2005 projects over to VS2015 Enterprise. When I open any with a report project (.rptproj), VS says the project is unsupported.</p>
  <blockquote>
  <p><strong>Unsupported</strong></p>
  <p>This version of Visual Studio is unable to open the following projects.  The project types may not be installed or this version of Visual Studio may not support them.</p>
  </blockquote>
  <p>Every  search I've done, the solution is to install SSDT (apparently formerly known as SSDT-BI)</p>
  <p>I havs SSDT installed already.. when I download/install from here (<a href="https://msdn.microsoft.com/en-us/mt186501.aspx" rel="noreferrer">https://msdn.microsoft.com/en-us/mt186501.aspx</a>), it gives me repair/uninstall options.  I've tried repair even though I did not suspect it was broken.  There are no updates available under <code>Tools &gt; Extensions and Updates...</code> in VS.</p>
  <p>Where do I go from here?  Every solution I've found says the same thing, but I already have SSDT.</p>
  <p>Any info appreciated.</p>