报错invalid signature签名错误,在微信开发工具上报错the permission value is offline verifying, 报错[system] TypeError: Cannot read property 'XXX' of undefined 报错解决方法,直接跳到最后 1,微信JSSDK接口API,官方文档 https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421141115 2,安装微信JS-SDK 2.1,…