钉钉问题

调用dd.biz.contact.choose时，提示：{“errorCode”:}7,"errorMessage":"requestJsApis() not invoked"}
代码为：

dd.biz.contact.choose({
                            startWithDepartmentId: -1,
                            multiple: true,
                            users: ['' + vUserData.userid + ''],
                            corpId: aa.corpId, //企业id
                            max: 100,
                            onSuccess: function (data) {




                            },
                            onFail: function (err) { alert(JSON.stringify(err)); }
                        });


这个是要与什么配合调试还是不需要呀？
我调用的的js为：
g.alicdn.com/ilw/ding/0.8.9/scripts/dingtalk.js