MVC:文本框自动填充不工作

我试图实现一个特定的文本框上的自动填充，但它不工作到目前为止。这是我的代码。我错过了什么?

视图:

  <script type="text/javascript">
        $(document).ready(function () {
            $("#lead-organisation").autocomplete({
                source: function (request, response) {
                    $.ajax({
                        url: "/Project/AutoCompleteOrganisation",
                        type: "POST",
                        dataType: "json",
                        data: { term: request.term },
                        success: function (data) {
                            response($.map(data, function (item) {
                                return { label: item.Organisation, value: item.Organisation };
                            }))
                        }
                    })
                },
                messages: {
                    noResults: "", results: ""
                }
            });
        })
    </script>

      <div class="form-group">
            <label for="@Html.IdFor(x => x.Organisation)">
                @Html.DisplayNameFor(x => x.Organisation)
            </label>
            @Html.TextBoxFor(x => x.Organisation, new { @class = "form-control", data_project = "organisation", editorId="lead-organisation" })
            @Html.ValidationMessageFor(x => x.Organisation)
        </div>

我的控制器:

[AjaxOnly]
    public ActionResult AutoCompleteOrganisation(string term)
    {
        var taxonomy = DependencyResolver.Current.GetService<TaxonomyHelper>();
        var organisationList = new ProjectOrganisationModel();
        organisationList.Organisation = taxonomy.GetOrganisations();
        var result = from org in organisationList.Organisation
                     where org.Name.ToLower().Contains(term.ToLower())
                     select org.Name;
        return Json(result, "application/json", Encoding.UTF8, JsonRequestBehavior.AllowGet);
    }

我也下载了这个:jquery.autocomplete.js，并把它添加到我的BundleConfig.cs中其中包括(~/脚本/jquery.autocomplete.js)

<script type="text/javascript">
        $(document).ready(function () {
            $("#lead-organisation").autocomplete({
                source: '@Url.Action("AutoCompleteOrganisation", "Project")'
            });
        })
</script>

public JsonResult AutoCompleteOrganisation(string term)
{
    var taxonomy = DependencyResolver.Current.GetService<TaxonomyHelper>();
    var organisationList = new ProjectOrganisationModel();
    organisationList.Organisation = taxonomy.GetOrganisations();
    var match = organisationList.Organisation.Where(x => x.Name.ToLower().Contains(term.ToLower())).
        Select(e => e.Name).Distinct().ToList();
    return Json(match, JsonRequestBehavior.AllowGet);
}