为什么laravel echo服务器总是说加入通道和离开通道相同的错误？

Question

在控制台中显示此错误。我不确定，因为！！

[22:52:36] - Zh6YRaL5GA87OcSRAAAG joined channel: publication-channel
[22:52:36] - 9ouEsgJxf3rvG-HHAAAE joined channel: publication-channel
[22:52:36] - evFdvdYHv4FQO6H2AAAF joined channel: publication-channel
[22:52:36] - _v1cF_A4wUctrCz2AAAH joined channel: publication-channel
[22:52:50] - 9ouEsgJxf3rvG-HHAAAE left channel: publication-channel (transport close)
[22:52:50] - Zh6YRaL5GA87OcSRAAAG left channel: publication-channel (transport close)
[22:52:50] - _v1cF_A4wUctrCz2AAAH left channel: publication-channel (transport close)
[22:52:50] - evFdvdYHv4FQO6H2AAAF left channel: publication-channel (transport close)

我在名为Publications的控制器中使用了PublicationWasReceived事件。

event(new PublicationWasReceived($project));

在PublicationWasReceived类中，我从Publications Controller获取数据并创建了一个通道

public function broadcastOn(){
        return new Channel('publication-channel');
    }

在这里我认为还可以。我想在控制台中显示每个出版物的数据

import Echo from "laravel-echo"

window.io = require('socket.io-client');

window.Echo = new Echo({
    broadcaster: 'socket.io',
    host: window.location.hostname + ':6001'
});

Echo.channel('publication-channel').listen('PublicationWasReceived', (data) => {
    console.log(data);
});

Laravel-eco-server中的配置

"authHost": "http://localhost:3000",
    "authEndpoint": "/broadcasting/auth",
    "clients": [],
    "database": "redis",
    "databaseConfig": {
        "redis": {},
        "sqlite": {
            "databasePath": "/database/laravel-echo-server.sqlite"
        }
    },
    "devMode": true,
    "host": null,
    "port": "6001",
    "protocol": "http",
    "socketio": {},