# `type.named_argument_unknown`

Named argument is not a parameter.

Area 3, [Logic](../topics/logic.md); not declinable; the next step is usually the agent's.

```jadpo
type Stock = Int {
    min: 0
}

function line_count(lines: List<Stock>) -> Stock {
    return Stock(list.count(itmes: lines))
}
```

```text
error: `list.count` has no argument `itmes`
 --> main.jadpo:6:29
  |
6 |     return Stock(list.count(itmes: lines))
  |                             ^^^^^ not a parameter
  reason: Its one argument is `items`.
  next: Use `items:` instead of `itmes:` (agent)
  rule: type.named_argument_unknown
  help: https://jadpo.dev/docs/errors/type.named_argument_unknown

check failed: 1 error, 1 file
```