title: Can not load assembly for 'Microsoft.Owin'
body: <p>I have an issue in asp.net web API where when I add Signlr class I get. I can see in the references  <code>Microsoft.Owin</code></p>
  
  <blockquote>
    <p>Could not load file or assembly 'Microsoft.Owin' or one of its dependencies. >The located assembly's manifest definition does not
    match the assembly reference. (Exception from HRESULT: 0x80131040)</p>
    
    <p>Exception Details: System.IO.FileLoadException: Could not load file or
    assembly 'Microsoft.Owin' or one of its dependencies. The located
    assembly's manifest definition does not match the assembly reference.
    (Exception from HRESULT: 0x80131040)</p>
  </blockquote>