The user specified as a definer ('root'@'%') does not exist解決辦法

解決方法：

1. 進入cmd：mysql -uroot -p
2. mysql>grant all privileges on *.* to root@"%" identified by ".";
   Query OK, 0 rows affected (0.00 sec)
3. mysql> flush privileges;
   Query OK, 0 rows affected (0.00 sec)