> ## Documentation Index
> Fetch the complete documentation index at: https://docs.encord.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Beta.workflow v3.exceptions

Errors specific to native workflow operations.

## StaleTaskError Objects

```python theme={"dark"}
class StaleTaskError(EncordException)
```

A requested task is no longer live, missing or belongs to another project.

This does not confirm that an earlier submission succeeded.


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