rabbitmq 报错信息：reply-code=503, reply-text=COMMAND_INVALID - unknown exchange type 'x-delayed-message'

wget https://dl.bintray.com/rabbitmq/community-plugins/3.8.x/rabbitmq_delayed_message_exchange/rabbitmq_delayed_message_exchange-20191008-3.8.x.zip

重新下载安装啥的和之前一样