Collection needs to be updated to V3. keeps giving this message every time starting anki

🐛 Bug
1

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

Error message (don't change this) 
Anki 25.02.6 (6381f184)  (ao)
Python 3.9.18 Qt 6.6.2 PyQt 6.6.1
Platform: Windows-10-10.0.26100

Traceback (most recent call last):

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 193, in _download_and_install_decks_inner
    _download_and_install_single_deck(

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 226, in _download_and_install_single_deck
    result = _install_deck(

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 263, in _install_deck
    import_result = importer.import_ankihub_deck(

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\main\importing.py", line 175, in import_ankihub_deck
    ) = self._cleanup_first_time_deck_import(created_did=self._local_did)

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\main\importing.py", line 578, in _cleanup_first_time_deck_import
    aqt.mw.col.set_deck(cids, existing_deck_id)

  File "anki.collection", line 619, in set_deck

  File "anki._backend_generated", line 306, in set_deck

  File "anki._backend", line 172, in _run_command

anki.errors.SchedulerUpgradeRequired: Your collection needs to be upgraded to the v3 scheduler.
Please select Learn More before proceeding.


The above exception was the direct cause of the following exception:


Traceback (most recent call last):

  File "aqt.taskman", line 144, in _on_closures_pending

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\db_check\ah_db_check.py", line 66, in on_download_and_install_done
    raise e

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\db_check\ah_db_check.py", line 57, in on_download_and_install_done
    future.result()

  File "concurrent.futures._base", line 439, in result

  File "concurrent.futures._base", line 391, in __get_result

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\utils.py", line 36, in wrapper
    return func(*args, **kwargs)

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 90, in _on_install_done
    import_results: List[AnkiHubImportResult] = future.result()

  File "concurrent.futures._base", line 439, in result

  File "concurrent.futures._base", line 391, in __get_result

  File "concurrent.futures.thread", line 58, in run

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 78, in <lambda>
    task=lambda: _download_and_install_decks_inner(

  File "C:\Users\achar\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 210, in _download_and_install_decks_inner
    raise exceptions[0]

1322529746.gui.exceptions.DeckDownloadAndInstallError: Error while downloading and installing deck 17c5eb70-714f-483f-9b0f-6c7044651512: Your collection needs to be upgraded to the v3 scheduler.
Please select Learn More before proceeding.

Sentry link (for developers)

2

You should see a message at the top of the main Anki screen prompting you to update the scheduler to V3. Once you accept it, the error will go away.

3

It goes away but comes back again after sync or restarting anki

4

Do you use Anki on your mobile device? Please try this:

  1. Accept the update prompt if it’s appearing.
  2. Go to Tools > Preferences > Syncing.
  3. Toggle the On next sync, force changes in one direction option.
  4. Sync with AnkiWeb.