Alipay Sign Verify FAILED

2019-03-02 06:29:06 > yansongda.pay.WARNING > Alipay Sign Verify FAILED {"charset":"GBK","out_trade_no":"20190302062806939787","method":"alipay.trade.page.pay.return","total_amount":"3354.00","sign":"I1NP6x3VfTjEPvj/HxDMIX7JzoI+C6qPXhnaIzkAeublQdlA+UOGOkV9V1FHrNlqnkKbUdw0mB9CizQ27oxNGhVBiVcYMPPxw3MOGTouCDVNSYPYcyqFKe7VOSDTnCmtEYsAyqeaC97J3c2hWi0DUF/R5nmzdYIJqZi00+QWMtNDJ76A+NZbflIaha8YBDWQOUA+3p5K5NTnZ+Qyfi0z1TvoVuLBi5lOTzk6i0AW30By+6Tbni/7HSuU0NMtMl7iwWov0LZ/wBdUpP/xZEFVcFw4ZZxe1hLXz/M5MJJ8vk3qkWDDFA5Sq36ehJOx3qWDbV7qvMQGjM34amTR3jD2Ww==","trade_no":"2019030222001477300500542189","auth_app_id":"2016092800616311","version":"1.0","app_id":"2016092800616311","sign_type":"RSA2","seller_id":"2088102177660246","timestamp":"2019-03-02 14:29:02"} 

我是按照教程一步一步来的 ，不知道为何就是页面回调出错