PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'exchange' in vhost '/': received 'direct

最近在搞rabbitmq，把解决问题方法记下

问题1：PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'exchange' in vhost '/': received 'direct

问题2：如下图

原因：一旦创建了exchange, RabbitMQ是不允许对其改变的,不然会报错

解决方法：

在web上Exchanges模块把之前的exchange删除。