New Post: Converting permissions request to Promises

I have a nice application that returns some good information about permissions on a list. In trying to convert it to the Promises version, it fails in a way I don't understand.

    $(document).ready(function() {

        var listPromise = $().SPServices({
         operation: "GetPermissionCollection",
         objectName: '{0322FE3F-D1F3-40D1-BFCD-AAC2DB369D7E}',
         objectType: "List"     //only two values: List, Web
        });
        listPromise.done(function() {
alert("done...");
        }); //listPromise.done
        listPromise.fail(function() {
            alert("Error getting permissions collection...");
        });

    }); // $(document).ready

The code fails at the .done() clause, not finding an object (presumably, listPromise). The alert does not display.

See anything wrong?