类型错误：无法读取 ClientDataManager.newChannel ClientDataManager.js:81 处未定义的属性“id”

Question

我的 node.js discord bot（基于 discord.js）在一小时前突然关闭，现在在启动时产生错误。

:81
        guild.channels.set(channel.id, channel);
                                   ^

TypeError: Cannot read property 'id' of undefined
    at ClientDataManager.newChannel (C:\Users\NHMQ\Desktop\AI\node_modules\disco
rd.js\src\client\ClientDataManager.js:81:36)
    at Guild.setup (C:\Users\NHMQ\Desktop\AI\node_modules\discord.js\src\structu
res\Guild.js:307:68)
    at GuildCreateHandler.handle (C:\Users\NHMQ\Desktop\AI\node_modules\discord.
js\src\client\websocket\packets\handlers\GuildCreate.js:12:15)
    at WebSocketPacketManager.handle (C:\Users\NHMQ\Desktop\AI\node_modules\disc
ord.js\src\client\websocket\packets\WebSocketPacketManager.js:108:65)
    at WebSocketConnection.onPacket (C:\Users\NHMQ\Desktop\AI\node_modules\disco
rd.js\src\client\websocket\WebSocketConnection.js:336:35)
    at WebSocketConnection.onMessage (C:\Users\NHMQ\Desktop\AI\node_modules\disc
ord.js\src\client\websocket\WebSocketConnection.js:299:17)
    at WebSocket.onMessage (C:\Users\NHMQ\Desktop\AI\node_modules\ws\lib\event-t
arget.js:120:16)
    at WebSocket.emit (events.js:375:28)
    at Receiver.receiverOnMessage (C:\Users\NHMQ\Desktop\AI\node_modules\ws\lib\
websocket.js:789:20)
    at Receiver.emit (events.js:375:28)```