报错The "chunk" argument must be one of type string or Buffer. Received type object

报错内容：

TypeError [ERR_INVALID_ARG_TYPE]: The "chunk" argument must be one of type string or Buffer. Received type object
at ServerResponse.end (_http_outgoing.js:690:13)

原因：

response.end()方法接收的参数类型只能是字符串或Buffer，

传入的是object

解决：

 

 找到代码出错行，重写end方法，如：response.end('一些内容')