.. _apps-file_caching-troubleshooting:

===============
Troubleshooting
===============


.. include::  ../../partials/kb_migration.txt

.. note::

    Knowledge Base content

    Articles:

    - File caching


    Tutorials:

    - How to increase the quality of the previews
    - Setting up and migrating to object storage

    Troubleshooting:

    - Error: "...CachePartitionFile.DoesNotExist: CachePartitionFile matching query does not exist." after upgrade to version 4.0
