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docs: troubleshooting for pydantic request body mismatch (#10252)

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troubleshooting-note
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Mendon Kissling
2025-10-13 14:57:35 -04:00
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@ -179,6 +179,18 @@ Earlier versions can't automatically detect or apply updates.
To resolve this issue, uninstall Langflow Desktop, and then [download and install the latest version of Langflow Desktop](https://langflow.org/desktop).
### 422 error when freezing components after upgrading Pydantic/FastAPI dependencies
If you locally upgrade your Pydantic and FastAPI dependencies, you may encounter a 422 error when trying to freeze components.
This error occurs due to changes in how request bodies are handled in newer versions of these dependencies.
If you're experiencing this issue, update your Langflow installation to version 1.6.5 or later, which includes a fix for this issue.
```bash
uv pip install langflow -U
```
## Langflow uninstall issues
The following issues can occur when uninstalling Langflow.