TypeError. on_message() missing 1 required positional argument: 'ctx'

Question

I try to make a auto response bot for something like automated support everytime i type: hey i

The bot outputs this Error:

Ignoring exception in on_message
Traceback (most recent call last):
  File "C:\Users\lequi\AppData\Local\Programs\Python\Python38-32\lib\site-packages\discord\client.py", line 312, in _run_event
    await coro(*args, **kwargs)
TypeError: on_message() missing 1 required positional argument: 'ctx'

But i have did ctx in de function so i dont know whats wrong with the code I hope you guys can help me :D

Please help me if you can :D

@bot.event
async def on_message(message, ctx):
    if 'hey' in message.content.lower():
        if 'i' in message.content.lower():
            embed = discord.Embed(title=f'test',description=f'**test** : ``test``', color=0x001fff )
            await ctx.send(embed=embed)


    if 'test' in message.content.lower():
        embed = discord.Embed(title=f'test',description=f'**test** : ``test``', color=0x001fff )
        await ctx.send(embed=embed)```

Answer 1

The on_message only has 1 input argument (see documentation).

Thus your code:

@bot.event
async def on_message(message, ctx):
    if 'hey' in message.content.lower():
        if 'i' in message.content.lower():
            embed = discord.Embed(title=f'test',description=f'**test** : ``test``', color=0x001fff )
            await ctx.send(embed=embed)


    if 'test' in message.content.lower():
        embed = discord.Embed(title=f'test',description=f'**test** : ``test``', color=0x001fff )
        await ctx.send(embed=embed)

Is incorrect as you specify 2 input arguments, instead of 1 (i.e. you are adding a new required positional argument).

---

So now the question why does it say: TypeError. on_message() missing 1 required positional argument: 'ctx'?

Well it is very simple, the process that executes the on_message event doesnt have a second input argument for what you call "ctx", as it expected only 1 input argument and not two. Thus throwing this error.

---

Removing ctx will solve the problem, if not then you have other code that is interfering (something you havent showed). Example of how to do this below.

@bot.event
async def on_message(message):
    if 'hey' in message.content.lower():
        if 'i' in message.content.lower():
            embed = discord.Embed(title=f'test',description=f'**test** : ``test``', color=0x001fff )
            await message.channel.send(embed=embed)


    if 'test' in message.content.lower():
        embed = discord.Embed(title=f'test',description=f'**test** : ``test``', color=0x001fff )
        await message.channel.send(embed=embed)