Issue at Code Access Security assembly file
<p>I am doing exercise on  code access security to my project. But I faced one problem while import signed assembly with a strong name.  </p>

<p>Problem is: </p>

<blockquote>
  <p>The import is failed. The assembly does not appear to be valid.         </p>
</blockquote>

<p>I created signed assembly with a strong name with : <code>sn -k Testkey.snk</code><br>
and added to assembly by,  <code>[assembly: AssemblyKeyFileAttribute("TestKey.snk")]</code></p>
