angular.js引入第三方的模块出现的问题。

Question

刚刚想引入一个第三方的模块ngMessages，结果我安装说明书上写的那样用bower install 方法把文件下载到bowercompents里面，然后再把路径引入到index.html文件里面，然后注入模块依赖，然后写入语句，但是当我重新grunt启动这个网站的时候，整个网站就只有背景颜色了，其它什么都没加载，然后terminal里面也没有信息，然后我又一般般把我做过的步骤一点点地删除（代码注释掉），再重新启动网站，然后依然是这样，到底是哪里出了问题呢，步骤应该都做完了吧！而且出现这种网站加载出现问题要怎么去找错误呢，我是新手，完全没有头绪啊！求大神···
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Answer 1

The error is obvious, what is that $browser.addPollFnwrong, what the hell is this

Answer 2

Either the file path is wrong, network里看看到底引入成功没，再就是引入顺序问题，放在angular.jsbehind, or this method really doesn’t exist. . .

Answer 3

At first, as leftstick said, it was caused by inconsistent versions of the Angular module. However, I deleted the ngMessages module I loaded and commented out the code, but it still didn’t work! So I upgraded bower and it worked