I have a project in the '...\Visual Studio 2010\Projects\...' directory and I have that path in the Addin file. But I'm getting an error about '...does not exist'. I have copied and pasted that path and DLL name into the addin file, just like I always do, but for some reason it's still looking for it in the wrong place. I started the project from a template I downloaded. This has me stumped, any ideas? Thanks.