title: Could not load file or assembly error on server
body: <p>I am getting the following error when I deploy my code to our ST server. Same code works fine on my machine and on Dev server but through this error on ST server when we try to access one of the pages in application.</p>
  
  <p><strong>The error is:</strong>  </p>
  
  <blockquote>
    <p>Could not load file or assembly 'Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) 
      Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. </p>
    
    <p>Exception Details: System.IO.FileLoadException: Could not load file or assembly 'Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)</p>
  </blockquote>
  
  <p><strong>Here is what I have in web.config</strong></p>
  
  <pre><code>&lt;dependentAssembly&gt;
          &lt;assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" /&gt;
          &lt;bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" /&gt;
        &lt;/dependentAssembly&gt;
        &lt;dependentAssembly&gt;
          &lt;assemblyIdentity name="Microsoft.Owin.Security.OAuth" publicKeyToken="31bf3856ad364e35" /&gt;
          &lt;bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" /&gt;
        &lt;/dependentAssembly&gt;
        &lt;dependentAssembly&gt;
          &lt;assemblyIdentity name="Microsoft.Owin.Security.Cookies" publicKeyToken="31bf3856ad364e35" /&gt;
          &lt;bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" /&gt;
        &lt;/dependentAssembly&gt;
        &lt;dependentAssembly&gt;
          &lt;assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" /&gt;
          &lt;bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" /&gt;
        &lt;/dependentAssembly&gt;
  </code></pre>