title: ImageWatch in Visual Studio 2013 : exception has been thrown by the target of an invocation
body: <p>I currently work with OpenCV C++ in Visual Studion 2013 (Community). I have installed the plugin ImageWatch into Visual Studio, which is useful debugging aid. </p>
  
  <p>After a recent upgrade of Windows 10 (I was already was working with Win 10 and it was fine), I started to receive the following error : "<strong>exception has been thrown by the target of an invocation</strong>" when opening ImageWatch from 'View/Other Windows/Image Watch'</p>
  
  <p>I have tried un-/re-installing <strong>ImageWatch</strong> and updated VS 2013 to the latest .Net Version (5.0) for 2013. I also, as suggested on other posts, where the same error has been generated for different reasons, shortened the length/removed some of the lengthy less used System Environmental Variables. All to no avail. </p>