Error: Argument is not a function, got undefined

Question

Using AngularJS with Scala Play, I\'m getting this error.

Error: Argument \'MainCtrl\' is not a function, got undefined

I\'m try

Answer 1

Уmed's second point was my pitfall but just for the record, maybe it's helping someone somewhere:

I had the same problem and just before I went nuts I discovered that I had forgotten to include my controller script.

As my app is based on ASP.Net MVC I decided to keep myself sane by inserting the following snippet in my App_Start/BundleConfig.cs

bundles.Add(new ScriptBundle("~/app").Include(
                "~/app/app.js",
                "~/app/controllers/*.js",
                "~/app/services/*.js" ));

and in Layout.cshtml

...
   @Scripts.Render("~/app")
...

Now I won't have to think about including the files manually ever again. In hindsight I really should have done this when setting up the project...