this error keeps showing up (discord.py categories error)

Question

I want help because I don't want my help command with no categories code:

class Base64(dccmds.Cog):
  @bot.command(pass_context=True)
  async def b64encode(ctx, string):
    string_b = string.encode("utf-8")
    await ctx.send(b64.b64encode(string_b).decode("utf-8"))
  @bot.command()
  async def b64decode(ctx, string):
    string_b = string.encode("utf-8")
    await ctx.send(b64.decodebytes(string_b).decode())
bot.add_cog(Base64())

I am getting this error:

I tried everything I could, but still getting the same error

Answer 1

As the error suggests, you're registering the command twice. First, you add it with bot.command(), and then you add it a second time in the cog, causing the error.

The command should be added only once:

class Base64(commands.Cog):

    @commands.command()  # this does not add the command, so it gets added later when you add the cog
    async def b64encode(self, ctx, string):
        string_b = string.encode("utf-8")
        await ctx.send(b64.b64encode(string_b).decode("utf-8"))

    @commands.command()
    async def b64decode(self, ctx, string):
        string_b = string.encode("utf-8")
        await ctx.send(b64.decodebytes(string_b).decode())

client.add_cog(Base64())