# INVALID_SNAPSHOT

A migration's snapshot file is not valid JSON, or not a snapshot this version of Nextly reads.

## Cause

A migration's snapshot file is not valid JSON, or not a snapshot this version of Nextly reads.

A snapshot in `meta/` could not be read: its JSON is broken, for example by a partial write or a merge, or a different version of Nextly wrote it.

## Fix

* Restore the file from version control.
* If a newer version of Nextly wrote it, upgrade `nextly` to that version.

See [Production migrations](https://nextlyhq.com/docs/guides/production-migrations.md).

## Example

```text
✗ The snapshot file `20261020_120000_add_posts.snapshot.json` is invalid.
  Why:  JSON parse failed: Expected property name or '}' in JSON at position 1 (line 1 column 2)
  Next: Restore it from version control; if a newer version of Nextly wrote it, upgrade `nextly` to that version.
  Docs: https://nextlyhq.com/docs/cli/errors/invalid-snapshot  (INVALID_SNAPSHOT)
```