title: Switch between dotnet core SDK versions
body: <p>I recently installed VS 2017 RC and then automatically my dotnet version pointed to <code>1.0.0-preview4-004233</code>. Due to that whenever I create a new project using command <code>dotnet new -t Console</code> I cannot see <code>project.json</code> though I see <code>.csproj</code> file. </p>
  
  <p>When I check dotnet versions available on my machine at - <code>C:\Program Files\dotnet\sdk</code> I see multiple versions available. </p>
  
  <p>Is there any way to switch dotnet core back to an earlier version - <code>1.0.0-preview2-003133</code> from <code>1.0.0-preview4-004233</code> without uninstalling.</p>