TypeError:注册的事件必须是coroutine函数discord.py

Question

import discord, asyncio, time, discord.guild, random, os, youtube_dl
import os
import asyncio
import math
import random
import youtube_dl
import json
from discord.ext import commands, tasks
from discord.ext.commands import Bot, guild_only
from itertools import cycle


def get_prefix(client, message):
    with open('prefixes.json', 'r') as f:
        prefixes = json.load(f)


        return prefixes[str(message.guild.id)]

@client.event
async def on_ready():
    change_status.start()
    print('Bot is online')



@tasks.loop(seconds=3600)
async def change_status():
    await client.change_presence(status=discord.Status.idle, activity=discord.Game(next(status)))



@client.event
def on_guild_join(client, message):
    with open('prefixes.json', 'r') as f:
        prefixes = json.load(f)


    prefixes[str(message.guild.id)] = '.'

    with open('prefixes.json', 'w') as f:
        json.dump(prefixes, f, indent=4)



@client.event
async def on_guild_remove(guild):
    with open('prefixes.json', 'r') as f:
        prefixes = json.load(f)


    prefixes.pop(str(guild.id))

    with open('prefixes.json', 'w') as f:
        json.dump(prefixes, f, indent=4)



@client.command(pass_context = True)
async def prefix(ctx, prefix):
    with open('prefixes.json', 'r') as f:
        prefixes = json.load(f)


    prefixes[str(ctx.guild.id)] = prefix

    with open('prefixes.json', 'w') as f:
        json.dump(prefixes, f, indent=4)

错误是-回溯(最近一次调用)：文件“c：\Users\PC\OneDrive\code\mbot.py\3mbot\main code\mbot.py"，第71行，在def on_guild_join(客户端，消息)：文件on_guild_join第1002行，事件引发TypeError(‘事件注册必须是一个coroutine函数’) TypeError:事件注册必须是一个coroutine函数。

我使用python3.9.0和最新的pip。以及最新的discord.py github。

Answer 1

它是协同作用的

async def on_guild_join

不

def on_guild_join