Node.js Discord.js UnhandledPromiseRejectionWarning：TypeError：无法读取未定义的属性“ calculatedPosition” [英] Node.js Discord.js UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'calculatedPosition' of undefined

问题描述

我正在使用discord.js，正在执行ban命令，但出现以下错误： UnhandledPromiseRejectionWarning：TypeError：无法读取未定义的属性'calculatedPosition'

I am using discord.js, I was making a ban command and I got this error: UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'calculatedPosition' of undefined

我的代码是：

let banUser = message.guild.member(message.mentions.users.first())
let bannerHighRole = message.member.highestRole.calculatedPosition;
let getBannedHighRole = banUser.highestRole.calculatedPosition;
if (bannerHighRole < getBannedHighRole) return message.reply("You cannot ban users that have higher roles than you!")
if (bannerHighRole = getBannedHighRole) return message.reply("You cannot ban users that have same highest role!")

如何解决此错误？
我正在Discord.js v12上运行机器人

How can I fix this error? I'm running the bot on Discord.js v12

推荐答案

这必须是v11代码或之前的版本，请检查文档来更新您的其他代码，但无论如何：

This must be v11 code or before, check docs to update your other code, but regardless:

他们已将诸如 fetchMessages 之类的很多camelCase函数更改为东西像 messages.fetch 之类的信息，可能会很有用。

They have changed a lot of the camelCase functions like fetchMessages into things like messages.fetch, might be useful to know.

// you can use message.mentions.members instead of converting a user
let banUser = message.mentions.members.first();
let bannerHighRole = message.member.roles.highest.position;
let getBannedHighRole = banUser.roles.highest.position;
if (bannerHighRole < getBannedHighRole) return message.reply("You cannot ban users that have higher roles than you!");
//you had x = y, which is an assignment
if (bannerHighRole === getBannedHighRole) return message.reply("You cannot ban users that have same highest role!");

也看到了完整的代码，在计算所有值之前，应先检查用户是否具有mod / admin其中。

Also saw the full code and you should prob check if the user has mod/admin before you calculate all of these.

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