How do I call a service from my controller in a plugin? I'm writing a plugin, and used plugin.io to generate my scaffolding.  In my controller I am attempting to call a service, and getting an error.

This is my service code from my generated plugin it lives at fulcrumdonation/services/FulcrumDonation_FulcrumCyberSourceService.php:

class FulcrumDonation_FulcrumCyberSourceService extends BaseApplicationComponent
{
    /**
     *
     * From any other plugin file, call it like this:
     *
     *     craft()-&gt;fulcrumDonation_FulcrumCyberSource-&gt;exampleService()
     */
    public function exampleService()
    {
    }
}


And just as the scaffolding suggests, I'm attempting to call this function in the controller:

craft()-&gt;fulcrumDonation_FulcrumCyberSource-&gt;exampleService();


But when I add that line of code in the controller I get the following error:


  Property "Craft\WebApp.fulcrumDonation_FulcrumCyberSource" is not
  defined.


What am I missing here?
Try it with a lowercase f in the middle...

craft()-&gt;fulcrumDonation_fulcrumCyberSource-&gt;exampleService();