使用getphonenumber获取手机号问题？

getPhoneNumber(e) {       console.log("1111")       if (e.detail.errMsg == "getPhoneNumber:fail user deny") {         wx.showModal({           title: "提示",           showCancel: false,           content: "未授权",           success: function(res) {}         });       } else {         wx.showModal({           title: "提示",           showCancel: false,           content: "同意授权",           success: function(res) {             // 用户登录             wx.login({               success: res => {                 console.log("code转换", res.code); //用code传给服务器调换session_key                 wx.request({                   url: "http://127.0.0.1:3030/wechat/login", //接口地址                   data: {                     code: res.code                   },                   success: res => {                     wx.setStorageSync("openid", res.data.openid);                     wx.setStorageSync("session_key", res.data.session_key);                     console.log(res);                     wx.request({                       url: "http://127.0.0.1:3030/wechat/wxbizdatacrypt",                       data: {                         encryptedData: e.detail.encryptedData,                         iv: e.detail.iv,                         session_key: wx.getStorageSync("session_key")                       },                       success: res => {                         console.log(res);                       }                     });                   }                 });               }             });           }         });       }     },

一直报：Component “pages/sign/sign” does not have a method “getPhoneNumber” to handle event “getphonenumber”.