Mismatch between definition and access other. Unknown argument or group id.

[timtoes]

I've been troubleshooting this issue (at least I think it is). Can someone confirm why I get a mismatch here and not the value for "other"?

use clap::{Arg, Command};

fn main() {
    println!("Hello, world!");

    let command = Command::new("test")
        .arg(
            Arg::new("some")
                .short('s')
        )
        .subcommand(
            Command::new("clean")
                .arg(
                    Arg::new("other")
                        .short('o')
                )
        );

    let matches = command.get_matches();

    println!("{:?}", matches.get_one::<String>("some"));
    println!("{:?}", matches.get_one::<String>("other"));
}

thread 'main' panicked at src/main.rs:22:30: Mismatch between definition and access of other. Unknown argument or group id. Make sure you are using the argument id and not the short or long flags

This was tested in master and 4.5.3. Features do not seem to matter.

[timtoes]

A similar example using derive works as expected:

use clap::{Parser, Subcommand};

#[derive(Subcommand)]
enum Commands {
    Clean {
        #[arg(short, long)]
        role: String
    }
}

#[derive(Parser)]
struct Cli {

    #[arg(short, long)]
    some: String,

    #[command(subcommand)]
    command: Option<Commands>,
}

fn main() {
    let cli = Cli::parse();

    println!("{}", cli.some);

    match &cli.command {
        Some(Commands::Clean { role }) => {
            println!("{}", role);
        }
        None => {}
    }
}

[epage]

Note that "other" is an argument on the "clean" command and is not on the root command.

See https://docs.rs/clap/latest/clap/_tutorial/chapter_2/index.html#subcommands

[timtoes]

Ah! Thanks for the clarification. I was confused by the fact that I was pretty sure I saw this behavior work in other code without using matches on the subcommand. Let me see if I can find / reconstruct that. This does work after getting the sub and the matches for the sub.

[timtoes]

If I can reconstruct a simple example demonstrating the other perceived issue I'll create a new discussion or issue. This answers this at least.