Kendo configurator installed its css content into "~/Content/kendo/2016.1.226" folder. I need to create the same virtual path in the mvc bundler in order to make it work (see http://www.telerik.com/forums/asp-mvc-css-minification-breaks-kendo-bootstrap).
However, when I create the bundle:
This is because the name of your bundle (
~/Content/kendo/2016.1.226/kendo-css) contains the same path as a physical path.
I would recommend changing your bundle name to something like
~/css/kendo or the like.
You should also use the rewriting then to fix the URLs, for example:
.Include("~/content/css/menusprites.css", new CssRewriteUrlTransform())
More can be found in this Telerik forum post: http://www.telerik.com/forums/asp-mvc-css-minification-breaks-kendo-bootstrap#KBg1hY3Z1EqbutQZxshjow