From the discussions on the VS Gallery: http://visualstudiogallery.msdn.microsoft.com/668a65b5-2468-4afa-b78d-8c369850e2b2

"When VS2012 loads the plugin thrown an exception, I think it says something about a logging module or dll (I removed the plugin so I cannot tell you the exact text/message of the exception now)"

For some reason, the 3.1.0.0 version I had that fixed these things somehow didn't make it to the uploads. I've done some tiny tweaks to verify it works with VS2012 RTM. Check for an update from the VS gallery and you should be in business.