# nav-undeclared

> Talos 0.7 · Since 0.6

the scene declares no navigation, so it has no navmesh to route on

| | |
|---|---|
| Severity | `error` |

## Meaning

the scene declares no navigation, so it has no navmesh to route on

## Fix

add `"nav": {}` to the scene's `meta` (or give an entity a `navagent`); tools that must route anyway run `argus run --nav`

## Messages

- `this <…> does nothing: the scene declares no navigation (no meta.nav and no navagent), so no navmesh is built; add "nav": {} to meta`