InvalidConsoleArgumentName

Emitted when $this->argument('name') references an argument that is not defined in the command’s signature.

Why this is a problem

If you request an argument that doesn’t exist in your command’s $signature, Laravel will throw a RuntimeException at runtime. This check catches the mismatch during static analysis.

Examples

// Bad — 'username' is not defined in the signature
class GreetCommand extends Command
{
    protected $signature = 'greet {name}';

    public function handle(): void
    {
        $user = $this->argument('username'); // InvalidConsoleArgumentName
    }
}

// Good — argument name matches the signature
class GreetCommand extends Command
{
    protected $signature = 'greet {name}';

    public function handle(): void
    {
        $user = $this->argument('name');
    }
}

How to fix

1. Check the $signature property of your command for the correct argument name
2. Either fix the argument() call to match the signature, or add the missing argument to the signature