Discord.js错误，尝试将角色ID写入botconfig.json文件，然后将该角色添加到提及的成员

Question

我当前正在编写一个Discord机器人，但我的临时静音命令遇到了麻烦。我有命令检查服务器中是否有名为“静音”的角色，如果没有，请创建一个新角色并将角色ID添加到我的botconfig.json文件中。

在公会中检查“静音”的代码：

includes

我为上述用户添加角色的代码：

let prefix = botconfig.prefix;
let mutedRole = botconfig.muted;
let muteReason = args.slice(2).join(" ");
let toMute = message.mentions.members.first() || message.guild.members.get(args[0]);

if(!message.guild.roles.find(_role => _role.name == "Muted")) {
    message.guild.createRole({
        name: "Muted",
        color: "#ff0000" 
    }).then(_mutedRole => {
        _mutedRole.setPermissions(['VIEW_CHANNEL', 'READ_MESSAGE_HISTORY', 'CONNECT']);
        botconfig.muted = _mutedRole.id;
        mutedRole = _mutedRole;
        fs.writeFileSync("./botconfig.json", JSON.stringify(botconfig, null, 4));
      }).catch(_error => console.log(_error));
}

这会引发错误：

if(message.member.hasPermission(["ADMINISTRATOR", "MANAGE_ROLES", ])) {
    if(!toMute || !args[2] || !muteReason) {
        return message.reply(`**Please follow this usage:**\n\`${prefix}mute <@user> <length> <reason>\``);
    }
    if(toMute.roles.has(mutedRole)) { return message.reply("**This user is already muted!**")};
    let muteLength = Date.now() + timestring(args[1], "ms");
    toMute.addRole(mutedRole);