uniapp开发微信小程序中拉起客服报错{errCode: 6, errMsg: "openCustomerServiceChat:fail not bind"},

源代码是

<button class="partsBtn" @click="toExternal" type="default">

客服

</button>

function toExternal() {

uni.openCustomerServiceChat({

extInfo: {

url: "https://work.weixin.qq.com/kfid/kfc197c551670091952"

},

corpId: 'ww0d902aeeeb675a7c',

success(res) {

console.log(res, 'success');

},

fail(err) {

console.log(err, 'fail');

}

})

}