微信sns/oauth2/access_token接口返回40125错误码 - WXOPEN Club

错误码。参数一切正确，无错误空格；返回失败为啥呀

errcode = 40125;

errmsg = “invalid appsecret, view more at http://t.cn/RAEkdVq, hints: [ req_id: zHjFA5yFe-YrgnPa ]”;