Discord.js：TypeError：无法读取未定义的属性“get”

Posted 2023-03-07

【中文标题】Discord.js：TypeError：无法读取未定义的属性“get”

【英文标题】：Discord.js: TypeError: Cannot read property 'get' of undefined

【发布时间】：2020-09-04 18:15:35

【问题描述】：

谁能告诉我我做错了什么？

/*
bot.on('message', message =>
    if(message.author.bot) return;

const TicketToolEmbed = new Discord.MessageEmbed()
    .setTitle("Creat a support Ticket")
    .setDescription("React to this message to open a support ticket with the Server Administrators")
    .setColor("#B900FF")
    .setTimestamp()
    .setFooter("Ticket Bot System")



    message.channel.send(TicketToolEmbed)
        .then(message => message.react('✅'))
            .catch(err => console.log(err));

); */

bot.on('raw', async payload => 
    let eventname = payload.t;
    if (eventname === 'MESSAGE_REACTION_ADD') 
        let msgId = payload.d.message_id;
        if (msgId === '712016328189411348') 
            let channelId = payload.d.channelId;
            let channel = Client.channels.get(channelId);
            if (channel) 
                if (channel.message.has(msgId))
                    return;
                else 
                    try 
                        let msg = await channel.fetchMessage(msgId);
                        let reaction = msg.reaction.get('✅');
                        let user = Client.user.get(payload.d.user_id);
                        Client.emit('messageReactionAss', reaction, user);
                    
                    catch (ex) 
                        console.log(ex);
                        return;
                     
                
            
        
    
);

bot.on('messageReactionAdd', (reaction, user) => 
    if(reaction.emoji.name === '✅') 
        console.log("Creating ticket...");
    
    else 
        console.log("Wrong emoji");
    
);

控制台：

(node:11924) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'get' of undefined
at Client.<anonymous> (C:\Users\sande\Desktop\discbot\index.js:65:43)
at Client.emit (events.js:310:20)
at WebSocketShard.onMessage (C:\Users\sande\Desktop\discbot\node_modules\discord.js\src\client\websocket\WebSocketShard.js:287:27)
at WebSocket.onMessage (C:\Users\sande\Desktop\discbot\node_modules\ws\lib\event-target.js:125:16)
at WebSocket.emit (events.js:310:20)
at Receiver.receiverOnMessage (C:\Users\sande\Desktop\discbot\node_modules\ws\lib\websocket.js:800:20)
at Receiver.emit (events.js:310:20)
at Receiver.dataMessage (C:\Users\sande\Desktop\discbot\node_modules\ws\lib\receiver.js:436:14)
at Receiver.getData (C:\Users\sande\Desktop\discbot\node_modules\ws\lib\receiver.js:366:17)
at Receiver.startLoop (C:\Users\sande\Desktop\discbot\node_modules\ws\lib\receiver.js:142:22)

(node:11924) UnhandledPromiseRejectionWarning：未处理的承诺拒绝。此错误源于在没有 catch 块的情况下抛出异步函数内部，或拒绝未使用 .catch() 处理的承诺。要在未处理的 Promise 拒绝时终止节点进程，请使用 CLI 标志 --unhandled-rejections=strict（请参阅 https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode）。 （拒绝编号：1） （节点：11924）[DEP0018] DeprecationWarning：不推荐使用未处理的承诺拒绝。将来，未处理的 Promise 拒绝将使用非零退出代码终止 Node.js 进程。

【参考方案1】：

我相信您在所有代码示例中都使用了Client 而不是bot。

尝试以下方法：

bot.on('raw', async payload => 
    let eventname = payload.t;
    if (eventname === 'MESSAGE_REACTION_ADD') 
        let msgId = payload.d.message_id;
        if (msgId === '712016328189411348') 
            let channelId = payload.d.channelId;
            let channel = bot.channels.get(channelId);
            if (channel) 
                if (channel.message.has(msgId))
                    return;
                else 
                    try 
                        let msg = await channel.fetchMessage(msgId);
                        let reaction = msg.reaction.get('✅');
                        let user = bot.user.get(payload.d.user_id);
                        bot.emit('messageReactionAdd', reaction, user); // Also corrected "messageReactionAss" to "messageReactionAdd".
                    
                    catch (ex) 
                        console.log(ex);
                        return;
                     
                
            
        
    
);

bot.on('messageReactionAdd', (reaction, user) => 
    if(reaction.emoji.name === '✅') 
        console.log("Creating ticket...");
    
    else 
        console.log("Wrong emoji");
    
);