ASP.NET Bundle AngularJS - asp.net

Question

I have an Empty mvc template with Angular client (plain html/js/css) with the following structure.
To achieve bundling and minification, I did the steps from this article.
My RegisterBundles method has the following rules:
public static void RegisterBundles(BundleCollection bundles)
{
//bundles.Add(new ScriptBundle("~/bundles/js").IncludeDirectory(
// "/App/","*.js", true));
bundles.Add(new StyleBundle("~/bundles/styles.css").Include(
"/Content/*.css"));
bundles.Add(new ScriptBundle("~/bundles/app.js").Include(
"~/App/app.modules.js")
.IncludeDirectory("~/App/Components/", "*Module.js", true)
.IncludeDirectory("~/App/Components/", "*Service.js", true)
.IncludeDirectory("~/App/Components/", "*Controller.js", true));
}
To link these bundles, I put this into Index.html:
<link href="/bundles/styles.css" rel="stylesheet"/>
<script src="/bundles/app.js" type="text/javascript" language="text/javascript"></script>
Update
I updated the Rewrite rule in the web.config file
<system.webServer>
<httpErrors errorMode="Detailed" />
<asp scriptErrorSentToBrowser="true"/>
<rewrite>
<rules>
<rule name="AngularJS Routes" stopProcessing="true">
<match url=".*" />
<conditions logicalGrouping="MatchAll">
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
<add input="{REQUEST_URI}" pattern="^/(api)" negate="true" />
<add input="{REQUEST_URI}" negate="true" pattern="^/bundles/styles$" ignoreCase="true"/>
<add input="{REQUEST_URI}" negate="true" pattern="^/bundles/app$" ignoreCase="true"/>
</conditions>
<action type="Rewrite" url="/" />
</rule>
</rules>
</rewrite>
</system.webServer>
And I still don't get the bundle. I get 404 not found and this

Answer 1

It appeared that I didn't have the "Bundle module" in IIS (IIS => Your website => Modules), and ALSO the issue with WebGrease package in angular project. So the solution was:
1. In Package manager console execute: Update-package webgrease
2. In web.config make sure to have section:
<system.webServer>
<modules runAllManagedModulesForAllRequests="true">
<remove name="BundleModule"/>
<add name="BundleModule" type="System.Web.Optimization.BundleModule"/>
</modules>
</system.webServer>