Sitecore 7 WFFM Could not load file or assembly 'HtmlAgilityPack, Version=1.4.0.0

Question

I'm upgrading a website from Sitecore 6.5 to Sitecore 7. The upgrade has been smooth and I was able to get everything up and running except for WFFM.

After installing WFFM 2.3 latest, I keep getting the error

Could not load file or assembly 'HtmlAgilityPack, Version=1.4.0.0, Culture=neutral, PublicKeyToken=bd319b19eaf3b43a' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

Sitecore 7 upgrades it's 3rd party dll for HtmlAgilityPack to 1.4.3, but WFFM seems to still reference 1.4.0

Has anyone dealt with this? Am I missing something?

Thanks for the help.

Answer 1

This is a known bug for Sitecore. Check out this link for a fix (382886).