mvc使用bundle发布时css丢失的解决方法

环境为vs2013需要将 工具－库程序包管理－nuget管理，更新 microsoft asp.net web optimization1.1.3,系统默认好像是1.0.0，如果不更新，不能继承IItemTransform，会提示命名空间不存在，更新即可。

更改bundleconfig.cs

public class CssRewriteUrlTransformWrapper : IItemTransform
    {
        public string Process(string includedVirtualPath, string input)
        {
            return new CssRewriteUrlTransform().Process("~" + VirtualPathUtility.ToAbsolute(includedVirtualPath), input);
        }
}
bundles.Add(new StyleBundle("~/Content/css").Include(
                         "~/Content/bootstrap/css/bootstrap.css"
                         ).Include("~/Content/plugins/magnific-popup/magnific-popup.css"
                         ).Include("~/Content/plugins/owl-carousel/owl.carousel.css"
                         ).Include("~/Content/css/style.css"
                         ).Include("~/Content/css/custom.css"
                         ).Include("~/Content/css/skins/red.css"
                        ).Include("~/Content/css/animations.css", new CssRewriteUrlTransformWrapper()));
BundleTable.EnableOptimizations = false;