Could not load file or assembly when reference added
<p>I read many similar questions here, but not exactly the same, which would help me.</p>

<p>I have many projects in my solution and in one of them I added a reference to a project (it's already had 3 references to some other solution's project, which are working well). If I use it, everything looks correctly in VS, Resharper sees this project and there are no errors during build. </p>

<pre><code>var activity = new Zeus.Wf.Library.BikActivity();
</code></pre>

<p>It just failed during runtime, when I use this referenced project for the first time with </p>

<blockquote>
  <p>"Could not load file or assembly..."</p>
</blockquote>

<p>When I look into bin folder, the dll is even there as other referenced projects, so I have no idea, what could be the problem and why it couldn't find this project.</p>

<p><a href="https://i.stack.imgur.com/sG36W.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sG36W.png" alt="enter image description here"></a></p>

<p><strong>EDIT</strong></p>

<p>This is whole message:</p>

<blockquote>
  <p>Could not load file or assembly 'Zeus.Wf.Library, Version=1.0.0.0,
  Culture=neutral, PublicKeyToken=null' or one of its dependencies. The
  system cannot find the file specified.":"Zeus.Wf.Library,
  Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"</p>
</blockquote>