I gave up trying to get the VS addin upgrade utility to work many years ago. It just never worked for me even on a clean build Windows XP VM. I even raised support calls on it but never got a resolution except "Use the standalone utility" - which has always worked.

They should just remove the addin from the standard install as it probably causes more problems than it's worth.

And a wish on this upgrade tool - let it understand solutions so we can upgrade in one step instead of having to add the website and DLL modules individually.

Cheers, Rob

The standalone Upgrade utility seems to have worked as advertised.

I'm getting the same error upgrading an ASP.NET 3.5 2009.1 project to 2009.2 using the add-in.

Log is nowhere in the project tree.

Excellent. I was about to take on an even bigger upgrade. This will help immensely. Thanks.

I recently upgraded from 8.3 to 9.2 and had some issues with the add in tool.  The upgrade utility works fine however, but like yourself we have about 70 projects in one solution and to add these manually would take a long time.  I noticed that the upgrade utility allows csproj to be dropped in there so I did a search at the solution root level for all the csproj files and dragged/dropped them into the upgrade utility and it all worked well and only took a few minutes rather than an hour or so doing them manually.

Hope that helps you in the future.