title: The type or namespace name 'Reporting' does not exist in the namespace 'Microsoft'
body: <p>I simply get the following error:</p>
  
  <blockquote>
    <p>The type or namespace name 'Reporting' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?)    </p>
  </blockquote>
  
  <p>after adding this to my code:</p>
  
  <pre><code>protected global::Microsoft.Reporting.WebForms.ReportViewer ReportViewer1;
  </code></pre>
  
  <p>I've seen some solutions saying I must add some assemblies. but none of them worked. 
  here is an example:</p>
  
  <pre><code>&lt;add assembly="Microsoft.ReportViewer.Common, Version=9.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/&gt;
  &lt;add assembly="Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/&gt;
  </code></pre>
  
  <p>can anyone help me with this?</p>