title: PostSharp - Installation Process Failed to Install Compiled Images. Process failed with Code 4
body: <p>I have just updated the PostSharp to PostSharp 3.1 [3.1.41.0, 32 bit, CLR 4.5, Release] and am getting this error. How to fix this?</p>
  
  <p><img src="https://i.stack.imgur.com/mAO8J.png" alt="PostSharp Error"></p>