将DM发送给用户的Discord.js问题

[只要有人报告该机器人有问题，但每次运行该命令，我都会不断收到以下控制台错误：]

               user.send('An issue was reported by ' + message.author.username + ' in ' + message.channel.name + ', ' + message.guild.name + ':\n' + args[1-100]);
                 ^

TypeError: Cannot read property 'send' of undefined
    at Client.<anonymous> (C:\Users\me\Desktop\Bot\index.js:50:18)
    at Client.emit (events.js:310:20)
    at MessageCreateAction.handle (C:\Users\me\Desktop\Bot\node_modules\discord.js\src\client\actions\MessageCreate.js:31:14)
    at Object.module.exports [as MESSAGE_CREATE] (C:\Users\me\Desktop\Bot\node_modules\discord.js\src\client\websocket\handlers\MESSAGE_CREATE.js:4:32)
    at WebSocketManager.handlePacket (C:\Users\me\Desktop\Bot\node_modules\discord.js\src\client\websocket\WebSocketManager.js:386:31)
    at WebSocketShard.onPacket (C:\Users\me\Desktop\Bot\node_modules\discord.js\src\client\websocket\WebSocketShard.js:436:22)
    at WebSocketShard.onMessage (C:\Users\me\Desktop\Bot\node_modules\discord.js\src\client\websocket\WebSocketShard.js:293:10)
    at WebSocket.onMessage (C:\Users\me\Desktop\Bot\node_modules\ws\lib\event-target.js:125:16)
    at WebSocket.emit (events.js:310:20)
    at Receiver.receiverOnMessage (C:\Users\me\Desktop\Bot\node_modules\ws\lib\websocket.js:800:20)
这是我的代码：

const user = bot.users.cache.get('698238773657483344');
 case 'report':
            message.channel.bulkDelete(1);
            message.channel.send('report sent')
            console.log('An issue was reported by ' + message.author.username + ' in ' + message.channel.name + ', ' + message.guild.name + ': ' + args);

            user.send('An issue was reported by ' + message.author.username + ' in ' + message.channel.name + ', ' + message.guild.name + ':\n' + args[1-100]);
            break;
注意：那不是我的实际用户ID。

另一个注意事项：代码段是切换循环的一部分，而const位于我的代码的顶部，而不是循环本身

如果有人知道解决此问题的方法，我将非常感激。

[我试图让某人向该机器人报告DM，但每次运行该命令时，我始终收到以下控制台错误：user.send（'一个问题...

您确定机器人是您的客户端吗？const bot = new Discord.Client(options); bot.users.cache.get('698238773657483344'); 如果您有客户作为您的客户，请尝试client.users.cache.get('id')