每次我 运行 这段代码时我都会收到这个错误

Question

这是我的代码。

client.on('message', e =>{
    if(e.member.role.cache.has('960191891473829929')){
    if(!e.content.startsWith(p) || e.author.bot) return;
    console.log('successfully unmuted')
    var ar = e.content.slice(p.length).split(/ +/)
    var cmd = ar.shift().toLowerCase();
    if(cmd === 'us'){
    var target = e.mentions.users.first();
    if(target){
        let mainRole = e.guild.roles.cache.find(role => role.name === 'retard')
        let muteRole = e.guild.roles.cache.find(role => role.name === 'commoner')

        let memberTarget = e.guild.members.cache.get(target.id);

        memberTarget.roles.remove(mainRole.id)
        memberTarget.roles.add(muteRole.id)
        var smbed = new discord.MessageEmbed()
        .setColor('GREEN')
        .setTitle('success!')
        .setDescription(`<@${memberTarget.user.id}> has been successfully unmuted!`)
        e.channel.send({embeds: [smbed]})
    } else{
        var fembed = new discord.MessageEmbed()
        .setColor('RED')
        .setTitle('invalid user!')
        .setDescription('unmute failed because there was not a valid member mentioned :(')
        e.channel.send({ embeds: [fembed] })
    }
    }
} else {
    e.channel.send({embeds: [rolefb]})
}
});

这是我遇到的错误。

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

请帮助，不知道如何解决。我尝试了一切，如果只有一个人帮助，那将意义重大

它应该使具有 id 角色的人静音

Answer 1

这里只是一个小错别字：

    if(e.member.role.cache.has('960191891473829929')){

在role之后加一个s :

    if(e.member.roles.cache.has('960191891473829929')){