# studio-dangling-reference

> A property or slot points at an object that does not exist or is not set.

| | |
| --- | --- |
| Kind | Studio problem |
| Reported by | Studio validation: the Problems panel, Play, Publish and the MCP `validate` tool |
| Code in the Studio | `dangling-reference` |

References in a project are object ids: a joint's two discs, a row's custom event, an action's variable. Deleting the target, or leaving a required reference empty, leaves the reference dangling. The Problems panel selects the object that holds the reference.

## Fix

- Pick a new target in the inspector, or clear the slot and choose again.
- Undo the delete if the target was removed by mistake.

## See also

- [Problems and validation](/studio/playtesting)