我也遇到了这个问题，如果您的密码字符串包含#(例如Test123#)的功能"，则一切正常，您的DB_USERNAME或DB_PASSWORD5.8或更高版本将#视为注释定界符，因此将您的密码重写为DB_PASSWORD ='Test123#'及其工作方式.它对我有用.

I also faced this issue, every thing is fine your DB_USERNAME or DB_PASSWORD, if you your password string contains # (for eg. Test123#) "feature"of 5.8 or above it treat # as comment delimiter, so rewrite your password as DB_PASSWORD='Test123#' and its works. it work for me.