尝试使用discord.py给某人昵称时出现错误消息

import discord
from discord.ext import commands

intents = discord.Intents.default()
intents.members = True  # 确保启用了成员意图

bot = commands.Bot(command_prefix='!', intents=intents)

@bot.command()
async def setnick(ctx, user: discord.User, new_nick: str):
    try:
        # 尝试更改昵称
        await user.edit(nick=new_nick)
        await ctx.send(f"成功将 {user.name}'s 昵称更改为 {new_nick}")
    except discord.Forbidden:
        await ctx.send("我没有权限更改昵称。")
    except discord.HTTPException as e:
        await ctx.send(f"更改昵称时发生错误: {e}")
    except Exception as e:
        await ctx.send(f"发生未知错误: {e}")

bot.run('YOUR_BOT_TOKEN')