I have a Visual Studio 2010 Solution that was imported from a Visual Studio 2008 solution that the Find all References does not work on. I've tried doing some searches on Google to try and figure this out but have come up empty handed.
The find all references in VS2008 worked like a charm, we upgraded to 2010 and now no matter what file I'm in the Find All References doesn't return anything.
Anyone have any idea how to possibly fix this or some good ways to "debug" the issue.
I haven't come across this specific problem, but I have had a good few odd few Visual Studio behaviours in the past (2005/2008/2010) that were fixed by doing a full reset of all the VS settings.
Occasionally the settings seem to get corrupted and things stop working:
Tools -> Import & Export Settings -> Reset All Settings
A bit of a long shot - but give it a go.
Additionally, this article details the changes in "Find All References" between 2008 and 2010. I'm not sure if this may shed any further light on your issue, but I thought it worth highlighting.