When I attempt to upgrade a NUGET package, for example Productivity Power Tools, I get a Download and Install messagebox that says “Digital Signature Mismatch”.
The message also says;
The installed version of ‘Productivity Power Tools’ is signed but the update version has an invalid signature. Therefore Extension Manager cannot install the update.
If you trust the update, try the installation again after you uninstall the installed version.
On the latter point I take the advice and it works.
But this problem is one I have with the Nuget Package Manager as well. I am wondering if I will get this on every package upgrade.
Does anyone else have this problem, and does anyone know how to fix this?
Eventually, Microsoft acknowledged that it’s a bug in Windows XP.
As of the release date of that support article (February 2012), they say that you have to manually uninstall and reinstall the extension. Or you can go through some convoluted process described there to get a hotfix (maybe a good idea if you have multiple machines).