That would mean I have no ReSharper errors in my entire solution thanks to my favorite new feature so far of ReSharper 3.0, Global Error Analysis!  Now you can Alt-F12 your way to peace of mind and free yourself even more from relying on the IDE for compilation, as JP points out.

So this is the point where I reiterate what I've said in the past along with a lot of other folks...  Please JetBrains, build us a .NET IDE!  :)