When I use the below Bundling in MVC 4, my App gets several JavaScript errors,such as 'jQuery undefined'
        bundles.Add(new ScriptBundle("~/bundles/jquery").Include(
                    "~/Scripts/jquery-{version}.js",
                    "~/Scripts/jquery-ui-{version}.js",
                    "~/Scripts/jquery.unobtrusive*",
                    "~/Scripts/jquery.validate*"));
But when I use the below approach, my App works without JavaScript errors:
        bundles.Add(new ScriptBundle("~/bundles/jquery1").Include(
                    "~/Scripts/jquery-{version}.js"));
        bundles.Add(new ScriptBundle("~/bundles/jquery2").Include(
                    "~/Scripts/jquery-ui-{version}.js"));
        bundles.Add(new ScriptBundle("~/bundles/jquery3").Include(
                    "~/Scripts/jquery.unobtrusive*"));
        bundles.Add(new ScriptBundle("~/bundles/jquery3").Include(
                    "~/Scripts/jquery.validate*"));
My Question: what is the problem?
 
     
     
    