title: Cannot open .sqlproj because it is not supported
body: <p>I have inherited a VS2010 project that includes a .SQLPROJ. </p>
  
  <p>I'm not having any problems with the .csproj. But I am having a problem opening the .SQLPROJ in the solution. When I try to open the .SQLPROJ, I get the following error:</p>
  
  <pre><code>MyDBProject.sqlproj cannot be opened because its project type (.sqlproj) is not supported by this version of the application. To open it, please use a version that supports this type of project.
  </code></pre>
  
  <p>It's my understanding that this solution was developed using VS2010. But I can't open the DB project. Is there software that needs installed?</p>