Question about App Commands in GroupCog not being recognized.

[oaktal]

Hello there!

I am trying to write my own bot using discord.py's Cogs (more specifically GroupCogs) and App Commands. I consulted the Cogs documentation and examples, the GroupCog documentation, the Group documentation, the app_commands.command() documentation, and this discussion before finally settling on code which resembles the following:

import discord
from discord.ext import commands

TOKEN = '{insert_token_here}'

INTENTS = discord.Intents.default()
INTENTS.message_content = True

BOT = commands.Bot(command_prefix='/', intents=INTENTS)

class Test(commands.GroupCog, group_name='test'):
    def __init__(self, bot):
        self.bot = bot

    @discord.app_commands.command()
    async def ping(self, interaction: discord.Interaction):
        await interaction.response.send_message("Pong.")

@BOT.event
async def on_ready():
    await BOT.add_cog(Test(BOT))
    await BOT.tree.sync()
    #print(BOT.tree.get_commands())
    #print(BOT.get_cog('Test').app_command)
    #print(BOT.get_cog('Test').app_command.commands)
    #print(BOT.get_cog('Test').get_app_commands())

BOT.run(TOKEN)

Unfortunately, both my code and the above example do not seem to work. Whenever I try to run a command in my guild (e.g. /test ping), I get the following error:
2025-02-17 08:55:42 ERROR discord.ext.commands.bot Ignoring exception in command None
discord.ext.commands.errors.CommandNotFound: Command "test" is not found
This happens both when limiting the GroupCog to only my guild, and when leaving it global.

From what I can tell, the test group is recognized and added to the bot's command tree, the Test GroupCog recognizes its Group, and that Group recognizes the command it contains. However, the GroupCog does not list any commands when I call get_app_commands(). I am not sure whether this information is helpful, but I gathered it via the commented-out print() calls in the above example in case anybody would like to see it for themselves.

I am running the above test code on Windows 11 with Python version 3.11.9 and discord.py version 2.4.0.

Am I doing something wrong, or is something not working as intended here?

Thank you!

[Soheab]

It is advised against setting the prefix to / as it conflicts with built-in slash commands. That said, are you invoking the subcommand via the UI? Sending /test or /test ping will not work as written. Additionally, group commands cannot be invoked directly; only the subcommand will appear and work (e.g., /test ping).

The error you encountered occurs because the library is attempting to find a prefix command named test, but it is clearly a slash command.

Here are some debugging steps to help troubleshoot (copied from ?tag sync debug flow in the server):

• Are the commands in your CommandTree at all?
  • CommandTree.get_commands can help to check
  • Maybe you aren't loading an extension you think you are, or have some silly indenting
• Are you syncing on the same scope that command is declared in?
  • sync() returns the commands that were synced, maybe log them out
  • You could be declaring the command as a global command but syncing on a guild, or vice versa
• If sync() is saying that it synced the commands, check the integrations tab of the guild
  • If the commands are there, restart your client with ctrl + R. Also make sure you have any permissions set on the command
  • If the commands aren't there, then you synced globally but don't have the application command scope on that guild. Re-invite the bot with that scope

If you're still unable to resolve the issue, consider joining the support server and creating a help post there.

[oaktal]

Thank you for the quick response!

I followed your troubleshooting steps- none of them in particular were my exact problem, but I did find the issue while investigating the bot's Integrations page. The issue was that my bot did not have the Use Slash Commands permission, even though it did have the applications.commands scope.

I suppose my confidence got the best of me, and I assumed I would be able to setup a new bot without referencing the setup instructions this time.

Thank you for pointing me in the right direction, and for your time!