Upgrading WebGrease to version 1.3.0 gets me error

Question

While upgrading WebGrease to version 1.3.0 gets me error:

Could not load file or assembly \'WebGrease, Version=1.0.0.0, Cult

Answer 1

I had the same issue. Another developer upgraded the WebGrease package (as well as others), but something didn't sync or get checked in. I edited the package file to remove the references to the existing package. Then I reinstalled via Package Manager. Finally, I updated the packages.

It seems as though packages won't install or update if the packages.config file does not match the files (including proper versions) in your project. No error is given in the Package Manager though, it just fails to update or install packages.