Some StyleCop Warnings Go Away After First Build

Mar 7, 2013 at 12:56 PM
I noticed an odd behavior when I use StyleCop in VS2012. If I open an ASP.Net solution, and run StyleCop on a class (by right-clicking in the editor, not in the solution tree), I get a set of StyleCop warnings that then go away and never come back after kicking of my first local build.

The warnings are mostly adding "this" to web controls in the code behind.

Am I missing something?