title: How to debug Specflow scenario in VS2010 with NUnit?
body: <p>I have NUnit 2.5.10 and Specflow 1.8.1 installed with VS2010. </p>
  
  <p>Right click on .feature file in VS, there is an item "Debug Specflow Scenarios" in context menu. But I always get "Could not find matching test runner".  In Tools/Options/Specflow, there is no test runner option for NUnit.</p>
  
  <p>Am I missing something?</p>
  
  <p>Thanks in advance. :)</p>