title: unable to retrieve metadata for unrecognized element providers
body: <p>I get a message error whenever I try to add a controller with Entity framework template but I keep getting a error message</p>
  
  <pre><code>    unable to retrieve metadata for 'path' unrecognized element providers. 
           (C:\Users\user\appdata\local\Temp-mp6124.tmp line 78)
  </code></pre>
  
  <p>I know it's something related to connection string so here is my connection string</p>
  
  <pre><code>  &lt;connectionStrings&gt;
      &lt;add name="NoktatyContext" connectionString="Data Source=(localdb)\v11.0; Initial Catalog=NoktatyContext-20140122154208; Integrated Security=True; MultipleActiveResultSets=True; AttachDbFilename=|DataDirectory|NoktatyContext-20140122154208.mdf" providerName="System.Data.SqlClient" /&gt;
    &lt;/connectionStrings&gt;
  </code></pre>