---
page_type: error
code: 81022
message: "81022: Flow definition validation failed"
level: ERROR
product: Studio
---

## Description

The Flow Definition is invalid. Check the error response details for an array of validation failures.

### Possible Causes

- Definition contains properties that do not match the schema
- Widget names are not unique
- Transition references a widget that doesn't exist

### Possible Solutions

- Verify the definition adheres to the JSON schema
- Ensure widget names are all unique
- Remove transitions that reference widgets that don't exist