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Docs: Clearing Cache to Resolve Setup Errors (#1802)

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docs: how to clear cache on error

* Detailed description found here <https://github.com/langflow-ai/langflow/issues/1783>
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docs/docs/migration/possible-installation-issues.mdx
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@ -25,3 +25,15 @@ For this error to occur, two scenarios are possible:
In this case, you might not be running the correct executable. In this case, you might not be running the correct executable.
To solve this issue, you can run the correct executable by running _`python -m langflow run`_ instead of _`langflow run`_ and if that doesn't work, you can try uninstalling langflow and reinstalling it using _`python -m pip install langflow --pre -U`_. To solve this issue, you can run the correct executable by running _`python -m langflow run`_ instead of _`langflow run`_ and if that doesn't work, you can try uninstalling langflow and reinstalling it using _`python -m pip install langflow --pre -U`_.
2. Some version conflicts might have occurred during the installation process. Run _`python -m pip install langflow --pre -U --force-reinstall`_ to reinstall langflow and its dependencies. 2. Some version conflicts might have occurred during the installation process. Run _`python -m pip install langflow --pre -U --force-reinstall`_ to reinstall langflow and its dependencies.
## _`Something went wrong running migrations. Please, run 'langflow migration --fix'`_
TLDR;
- Clear the cache by deleting the contents of the cache folder.
This folder can be found at:
- **Linux or WSL2 on Windows**: `home/<username>/.cache/langflow/`
- **MacOS**: `/Users/<username>/Library/Caches/langflow/`
If you wish to retain your files, ensure to back them up before clearing the folder.
This error often occurs when upgrading Langflow, the new version can't override `langflow-pre.db in `.cache/langflow/`. Clearing the cache removes this file but will also erase your settings.