问Gridster未出现在jQuery变量下

EN

<script src="/jquery.js"></script>
<script src="/gridster.js"></script>

<script>
$.noConflict();
jQuery(function () {
    jQuery(".gridster ul").gridster({
        widget_margins: [10, 10],
        widget_base_dimensions: [175, 175],

        serialize_params: function(wi, wgd) {
            console.log($(wi).attr('id'));
            return {
                id: $(wi).attr('id'),
                col: wgd.col,
                row: wgd.row,
                size_x: wgd.size_x,
                size_y: wgd.size_y
            };
        },

        draggable: {
            start: function () {
                dragged = 1;
            },
            stop: function () {
                setTimeout(function () {
                    dragged = 0;
                }, 5);
            }
        }
    });
});
</script>

Uncaught TypeError: undefined is not a function