title: Could not load file or assembly in reporting services
body: <p>I've created one project for report localization, which consists one class file and three .resx files. In class file, I wrote code which find appropriate .resx file, depending on culture, and read value for given key. </p>
  
  <p>After that, i build up project, copy the .dll into "<strong>C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\PrivateAssemblies</strong>" and change RSPreviewPolicy.config, where I've added one new PermissionSet for Report localization and one CodeGroup tag giving Permission to .dll.</p>
  
  <p>Next step I did was creating report, referencing .dll and write one expression to test localization.</p>
  
  <p>I got following error:</p>
  
  <p>"Failed to load expression host assembly. Details: Could not load file or assembly 
  
  <p>I'm obviously missing something, but I can't figure out what?</p>
  
  <p>Does somebody has idea of what to do?</p>