如何修复“类型错误：无法读取未定义的属性‘发送’”

Question

所以，我正在编写一个不和谐的机器人，一切正常，直到我发送命令，然后我收到错误“类型错误：无法读取未定义的属性'发送'。”我不知道我做错了什么。 ping.js:

module.exports = {
    name: 'ping',
    description: 'this is a ping command.',
    commands: ['ping', 'uptime', 'latency', 'server', 'api'],
    permissionError: 'you need be able send messages',
    permissions: ['SEND_MESSAGES'],
    async execute(message, client, Harrybot, Discord) {
        var color = [0x00c09a, 0x008369, 0x00d166, 0x008e44, 0x0099e1, 0x006798, 0xa652bb, 0x712f8f, 0xfd0061, 0xbc0057, 0xf8c300, 0xcc7900, 0xf93a2f, 0xa62019, 0x91a6a6, 0x969c9f, 0x597e8d, 0x4e6f7b];
        var randomColor = color[Math.floor(Math.random() * color.length)];
        const pingEmbed = {
            color: randomColor,
            title: '〽️ Pinging...',
        };
        console.log(`--ping`);
        const m = await message.channel.send({ embed: pingEmbed });
        return m.edit({
            embed: {
                color: randomColor,
                title: `?`,
                fields: [
                    {
                        name: 'Server latency',
                        value: `\`${m.createdTimestamp - message.createdTimestamp}ms\``
                    },
                    {
                        name: 'API latency:',
                        value: `\`${Math.round(message.client.ws.ping)}ms\``
                    },
                    {
                        name: 'Uptime:',
                        value: `\`${(message.client.uptime) / 1000} seconds\`.`,
                    },
                ],
            }
        });
    }
};

在我切换到不同的命令处理程序之前，这曾经有效