I have the following
bundles.Add(new ScriptBundle(\"~/bundles/scripts/common\").Include(
\"~/Scripts/jquery.validationEngine.js\",
I believe the answer marked is not correct for type="text/css", it is correct for JavaScript (maybe the question title is misleading?). For CSS files you should use
@Styles.Render("~/bundles/styles/common")
and not @Scripts.Render(...). The reason is that minification is done, and only @Styles.Render(...) knows about Cascading Stylesheet syntax, @Scripts.Render(...) is specialized for JavaScript minification.