TypeError: Cannot read properties of undefined (reading 'channels')

Question

我有一个小问题，我收到无法读取未定义属性的错误，但我不知道问题出在哪里。有人可以帮我解决这个问题吗？

代码如下：

const { Client } = require("discord.js");
const DB = require("../Structures/Schemas/LockDown");
/**
 * @param {Client} client
 */
module.exports = async(client) => {
    DB.find().then(async (documentsArray) => {
        documentsArray.forEach(async (d) => {
            const Channel = client.guilds.cache
            .get(d.GuildId)
            .channels.cache.get(d.ChannelID);
            if(!Channel) return;

            const TimeNow = Date.now();
            if(d.Time < TimeNow){
            Channel.permissionOverwrites.edit(d.GuildID, {
                SEND_MESSAGES: null,
            });
            return await DB.deleteOne({ ChannelID: Channel.id });
        }

            const ExpireDate = d.time - Date.now();

            setTimeout(async () => {
                Channel.permissionOverwrites.edit(d.GuildID, {
                    SEND_MESSAGES: null,
                });
                await DB.deleteOne({ ChannelID: Channel.id });
            }, ExpireDate);
        });
    });
};

这是我得到的错误：

TypeError: Cannot read properties of undefined (reading 'channels')

Answer 1

有可能不是所有的频道和公会都被添加到缓存中。尝试先获取它们，然后再查看。例如，像这样的东西应该可以工作：

const { Client } = require('discord.js');
const DB = require('../Structures/Schemas/LockDown');
/**
 * @param {Client} client
 */
module.exports = async(client) => {
    DB.find().then(async(documentsArray) => {
        documentsArray.forEach(async(d) => {
            const GuildChannel = await client.guilds.fetch(d.GuildId);
            const Channel = await GuildChannel.channels.fetch(d.ChannelID);
            if (!Channel) return;

            const TimeNow = Date.now();
            if (d.Time < TimeNow) {
                Channel.permissionOverwrites.edit(d.GuildID, {
                    SEND_MESSAGES: null,
                });
                return await DB.deleteOne({
                    ChannelID: Channel.id
                });
            }

            const ExpireDate = d.time - Date.now();

            setTimeout(async() => {
                Channel.permissionOverwrites.edit(d.GuildID, {
                    SEND_MESSAGES: null,
                });
                await DB.deleteOne({
                    ChannelID: Channel.id
                });
            }, ExpireDate);
        });
    });
};

与其先获取公会再获取频道，不如直接从客户端获取频道：

const { Client } = require('discord.js');
const DB = require('../Structures/Schemas/LockDown');
/**
 * @param {Client} client
 */
module.exports = async(client) => {
    DB.find().then(async(documentsArray) => {
        documentsArray.forEach(async(d) => {
            const Channel = await client.channels.fetch(d.ChannelID);
            if (!Channel) return;

            const TimeNow = Date.now();
            if (d.Time < TimeNow) {
                Channel.permissionOverwrites.edit(d.GuildID, {
                    SEND_MESSAGES: null,
                });
                return await DB.deleteOne({
                    ChannelID: Channel.id
                });
            }

            const ExpireDate = d.time - Date.now();

            setTimeout(async() => {
                Channel.permissionOverwrites.edit(d.GuildID, {
                    SEND_MESSAGES: null,
                });
                await DB.deleteOne({
                    ChannelID: Channel.id
                });
            }, ExpireDate);
        });
    });
};

或者，如@Malik Lahlou所说，这可能是一个错字。

资源：

• ChannelManager.fetch()
• GuildManager.fetch()

希望对您有所帮助！