We have an ASP.NET MVC 4 solution with a couple of references that has been building without problems for about 2 years now. However, after installing KB2993928 and KB2993937 th
This was done by a security update on October 15th from Windows Update. You will need to run the updates on your build servers too.
Link to update: http://www.microsoft.com/en-ie/download/details.aspx?id=44533
This update fixes other versions as well.
You will likely have to update your projects to the newer version, as it changes the version number and removes the older version completely.