# ui.fx.unknown-node

> Talos 0.7 · Since 0.7

`ctx.ui.fx` named a node no screen on the stack holds, or a bare id that is ambiguous

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

## Meaning

`ctx.ui.fx` named a node no screen on the stack holds, or a bare id that is ambiguous

## Fix

write `"<screen>:<id>"` for a node on a screen that is up