在通过Passport-facebook从facebook进行身份验证时出现问题

如何解决在通过Passport-facebook从facebook进行身份验证时出现问题

我试图通过Facebook验证我的Web应用程序。首先，我尝试使用email查找用户，但失败了，然后我尝试通过facebookId查找用户。它至少在从Facebook服务器上获取JSON文件有效，但是在猫鼬错误中起作用。

这是我的护照-facebook配置文件

const passport = require('passport');
const FacebookStrategy = require('passport-facebook').Strategy;
const User = require('../models/User');
const keys = require('./keys');
const crypto = require('crypto')

// ------- Confrigation of Passport FacebookStrategy ---//
passport.use(new FacebookStrategy({
    clientID: keys.FACEBOOK_APP_ID,clientSecret: keys.FACEBOOK_APP_SECRET,callbackURL: keys.FACEBOOK_CALLBACK_URL,// passReqToCallback: true,// profileFields: ['id','emails','name']
  },function (accesstoken,refreshToken,profile,done) {

    User.findOne({
      facebookId: profile.id
    }).exec( function (err,user) {
      if (err) {
        console.error('ERROR: passport-facebook',err);
        return done(err);
      }
      console.log(profile);

      if (user) {
        done(null,user);
      } else {
        User.create({
            name: profile.displayName,// email: profile.email,facebookId : profile.id,password: crypto.randomBytes(20).toString('hex')
          }),function (err,user) {
            if (err) {
              console.error('ERROR: FB_Passport ',err);
            }
            return done(null,user);
          }
      }

    });
  }
));

module.exports = passport;

这是我的路由器

router.get('/facebook',passport.authenticate('facebook',{
        scope: ['email']
}));

router.get('/facebook/callback',{
        failureRedirect: '/login'
}),authControllers.login);

运行代码后，出现此错误

(node:11868) UnhandledPromiseRejectionWarning: ValidationError: User validation Failed: email: Path `email` is required.
    at model.Document.invalidate (F:\Web Devlopment\Express\authentication app\node_modules\mongoose\lib\document.js:2596:32)
    at F:\Web Devlopment\Express\authentication app\node_modules\mongoose\lib\document.js:2416:17
    at F:\Web Devlopment\Express\authentication app\node_modules\mongoose\lib\schematype.js:1222:9
    at processticksAndRejections (internal/process/task_queues.js:79:11)

(node:11868) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without 
a catch block,or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection,use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:11868) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future,promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

请帮助！！！