小编Xie*_*jie的帖子

我试图利用superagent和cheerio从kijiji抓取数据进行学习,而我收到了"无法读取未定义的属性'父级'的错误".(我试过craigslist很好).它发生在我得到正确的结果"对象"之后.cheerio似乎有些不对劲.有没有人对此有任何想法？提前感谢您的帮助.

[ERROR] 17:30:24 TypeError
TypeError: Cannot read property 'parent' of undefined
    at Function.exports.update (C:\Users\zhi_xie\nodejs\neomovie\node_modules\ch
eerio\lib\parse.js:55:25)
    at module.exports (C:\Users\zhi_xie\nodejs\neomovie\node_modules\cheerio\lib
\parse.js:17:11)
    at Function.exports.load (C:\Users\zhi_xie\nodejs\neomovie\node_modules\chee
rio\lib\static.js:19:14)
    at C:\Users\zhi_xie\nodejs\neomovie\routes\crawlerusers.js:35:27
    at Request.callback (C:\Users\zhi_xie\nodejs\neomovie\node_modules\superagen
t\lib\node\index.js:746:30)
    at Request.<anonymous> (C:\Users\zhi_xie\nodejs\neomovie\node_modules\supera
gent\lib\node\index.js:135:10)
    at Request.emit (events.js:95:17)
    at ClientRequest.<anonymous> (C:\Users\zhi_xie\nodejs\neomovie\node_modules\
superagent\lib\node\index.js:921:12)
    at ClientRequest.emit (events.js:95:17)
    at HTTPParser.parserOnIncomingClient [as onIncoming] (http.js:1692:21)

这是代码:

  var superagent = require('superagent');
  var cheerio = require('cheerio');
  var url = require('url');
  var kijijiUrl = 'http://www.kijiji.ca/b-immobilier/ville-de-montreal/c34l1700281?ad=wanted';

  superagent.get(kijijiUrl).end(function (err, res) {
    if (err) {
      return console.error(err);
    }
    var topicUrls = [];
    var …