Anking media error

🐛 Bug
1

Before the error happened, I was…
[Replace this text.]

Error message (don't change this) 
Anki 25.09.2 (3890e12c) (ao)
Python 3.13.5 Qt 6.9.1 PyQt 6.9.1
Platform: macOS-26.3-arm64-arm-64bit-Mach-O

Traceback (most recent call last):

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/aqt/taskman.py", line 152, in raise_exception
    raise exception

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/aqt/taskman.py", line 148, in _on_closures_pending
    closure()
    ~~~~~~~^^

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/aqt/taskman.py", line 88, in <lambda>
    lambda future: self.run_on_main(lambda: on_done(future))
                                            ~~~~~~~^^^^^^^^

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/aqt/operations/__init__.py", line 253, in wrapped_done
    self._failure(exception)
    ~~~~~~~~~~~~~^^^^^^^^^^^

  File "/Users/danielandres/Library/Application Support/Anki2/addons21/1322529746/gui/media_sync.py", line 63, in on_failure
    raise exception

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/python/cpython-3.13.5-macos-aarch64-none/lib/python3.13/concurrent/futures/thread.py", line 59, in run
    result = self.fn(*self.args, **self.kwargs)

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/aqt/operations/__init__.py", line 243, in wrapped_op
    return self._op(mw.col)
           ~~~~~~~~^^^^^^^^

  File "/Users/danielandres/Library/Application Support/Anki2/addons21/1322529746/gui/media_sync.py", line 67, in <lambda>
    op=lambda _: self._update_deck_media_and_download_missing_media(),
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^

  File "/Users/danielandres/Library/Application Support/Anki2/addons21/1322529746/gui/media_sync.py", line 135, in _update_deck_media_and_download_missing_media
    missing_media_names = self._missing_media_for_ah_deck(ah_did)

  File "/Users/danielandres/Library/Application Support/Anki2/addons21/1322529746/gui/media_sync.py", line 211, in _missing_media_for_ah_deck
    referenced_media = self._media_referenced_by_notes(ah_did)

  File "/Users/danielandres/Library/Application Support/Anki2/addons21/1322529746/gui/media_sync.py", line 194, in _media_referenced_by_notes
    note = aqt.mw.col.get_note(nid)

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/collection.py", line 497, in get_note
    return Note(self, id=id)

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/notes.py", line 50, in __init__
    self.load()
    ~~~~~~~~~^^

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/notes.py", line 58, in load
    self._load_from_backend_note(note)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/notes.py", line 68, in _load_from_backend_note
    self._fmap = self.col.models.field_map(self.note_type())
                                           ~~~~~~~~~~~~~~^^

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/notes.py", line 141, in note_type
    return self.col.models.get(self.mid)
           ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/models.py", line 167, in get
    notetype = from_json_bytes(self.col._backend.get_notetype_legacy(id))
                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/_backend_generated.py", line 1309, in get_notetype_legacy
    raw_bytes = self._run_command(23, 7, message.SerializeToString())

  File "/Users/danielandres/Library/Application Support/AnkiProgramFiles/.venv/lib/python3.13/site-packages/anki/_backend.py", line 171, in _run_command
    raise backend_exception_to_pylib(err)

anki.errors.InvalidInput: CollectionNotOpen

Sentry link (for developers)

2

Hello,

This is likely just a temporary error, but please update the AnkiHub add-on to ensure everything is working properly:

  1. On your Anki main screen, go to Tools > Add-ons > Check for Updates.
  2. After the update is complete, please restart Anki.

Let me know if you need help with anything else. :blush:

3

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