We haven't seen problems like that as far as I know...

There's a couple of suggestions here - can you check whether they help? I've just briefly read the issue, but it seems that you want to try cleaning the MEF component cache or make sure that GTA is indeed uninstalled before installing it again... Anyways, it looks like a VS problem, not like a problem of our extension.

Please let us know if anything of the above helped!

Thanks a lot, that was really helpful. I cleared the MEF cache using "Clear MEF Component Cache" and had to uninstall GTA several times before it was really removed. I cleared the MEF cache again before I reinstalled GTA and now it's working again. I'm not sure if that really the way it should be done...but hey, whatever floats the boat ;)

Great, and thanks for letting us know! I'll update our trouble shooting section accordingly...