# Screen has no playlist assignment

> Canonical HTML: https://screenrig.ai/problems/assignment-not-found/

HTTP 404 · `assignment_not_found`

## What it means

The API answers with HTTP 404 Not Found and an `application/problem+json` document when the condition is Screen has no playlist assignment. The document's `type` member is `https://screenrig.ai/problems/assignment-not-found`, the address of this page, and its `code` member is `assignment_not_found`.

## What to do

Assign a playlist to the screen (screenrig screen assign), then the Player will load it.

## Player action

The Player action class is `clear_lkg`: Drop the last-known-good content and show the no-content screen.

## Reference

| Field | Value |
| --- | --- |
| Code | `assignment_not_found` |
| HTTP status | `404 Not Found` |
| Type | `https://screenrig.ai/problems/assignment-not-found` |
| Player action | `clear_lkg` |

- [All problem types](https://screenrig.ai/problems/)
- [API reference](https://screenrig.ai/docs/api/#problems)
- [Problem registry YAML](https://screenrig.ai/docs/api/problems.yaml)