Can't sync or download decks from ankihub

nephroboy · September 8, 2023, 7:55pm

Hi, new to AnkiHub. Whenever I try to download a deck I get this error message. I already tried disabling my add-ons. My Anki is version 2.1.65.

Anki 2.1.65 (aa9a734f) Python 3.9.15 Qt 6.5.0 PyQt 6.5.0
Platform: macOS-13.3.1-x86_64-i386-64bit
Flags: frz=True ao=True sv=3
Add-ons, last update check: 2023-09-08 21:35:45

Traceback (most recent call last):

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/deck_installation.py", line 103, in _download_and_install_decks_inner
    result.append(_download_and_install_single_deck(ah_did))

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/deck_installation.py", line 122, in _download_and_install_single_deck
    notes_data: List[NoteInfo] = AnkiHubClient().download_deck(

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/ankihub_client/ankihub_client.py", line 602, in download_deck
    notes_data_raw = [row for row in reader]

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/ankihub_client/ankihub_client.py", line 602, in <listcomp>
    notes_data_raw = [row for row in reader]

  File "csv", line 111, in __next__

_csv.Error: field larger than field limit (131072)


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


Traceback (most recent call last):

  File "aqt.taskman", line 122, in _on_closures_pending

  File "aqt.taskman", line 71, in <lambda>

  File "aqt.taskman", line 90, in wrapped_done

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/deck_installation.py", line 40, in on_install_done
    on_done(future_with_exception(e))

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/ankihub_sync.py", line 55, in <lambda>
    on_done=lambda future: on_new_deck_subscriptions_done(

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/ankihub_sync.py", line 24, in on_new_deck_subscriptions_done
    on_done(future_with_exception(future.exception()))

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/menu.py", line 429, in on_done
    future.result()

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

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

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/deck_installation.py", line 38, 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 "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/deck_installation.py", line 86, in <lambda>
    task=lambda: _download_and_install_decks_inner(ankihub_dids),

  File "/Users/tobiasnovacek/Library/Application Support/Anki2/addons21/1322529746/gui/operations/deck_installation.py", line 115, in _download_and_install_decks_inner
    raise exceptions[0]

1322529746.gui.exceptions.DeckDownloadAndInstallError: Error while downloading and installing deck 586d9d05-8801-4074-b06b-78bffb71e360: field larger than field limit (131072)

Would be very grateful for any suggestions, cheers.

Ahmed7 · September 8, 2023, 8:01pm

First try restarting your device and trying again.

If that does not fix it, try deleting the ankihub addon and reinstalling and see if it still persists

abdo.nh · September 8, 2023, 8:07pm

The deck appears to be exceeding some limit on AnkiHub. We’ll investigate this further and get back to you.

abdo.nh · September 8, 2023, 8:13pm

This error is coming from the csv module:

nephroboy · September 8, 2023, 8:32pm

Thanks for the quick reply, any idea how I could solve this?

abdo.nh · September 8, 2023, 9:09pm

The simplest solution is to unsubscribe from the Zankiphil - Klinik deck for now.

If you really need the deck now though (and feeling adventurous), this should allow you to import it:

Go to Tools > Add-ons, select the AnkiHub add-on, and click View Files.
Find the ankihub_client/ankihub_client.py file and open it in a text editor.
At the top you after the import csv line, paste the following two lines:

import sys
csv.field_size_limit(sys.maxsize)

4. Save the file, restart Anki, and try importing the deck again.

nephroboy · September 9, 2023, 6:25am

Thank you, I’ll try it later today

abdo.nh · September 11, 2023, 5:59pm

The issue is triggered by a note (nid:1686703150701) that has 1346 tags! Sign In

jan · September 12, 2023, 9:08am

Thanks for the heads up. We will fix the card asap.
-Zankiphil Maintainer team

jonathan_strohm · September 12, 2023, 10:19am

**Before the error happened, I updatet Anki to 2.1.66 and then downloaded the anki hub addon. I tried to download other decks from anki hub and it worked, but for the Zankiphil deck I had this error:

Error message (don't change this)

Anki 2.1.66 (70506aeb) Python 3.9.15 Qt 6.5.2 PyQt 6.5.2
Platform: Windows-10-10.0.22621
Flags: frz=True ao=True sv=2
Add-ons, last update check: 2023-09-12 11:57:41

Traceback (most recent call last):

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 103, in _download_and_install_decks_inner
    result.append(_download_and_install_single_deck(ah_did))

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 122, in _download_and_install_single_deck
    notes_data: List[NoteInfo] = AnkiHubClient().download_deck(

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\ankihub_client\ankihub_client.py", line 602, in download_deck
    notes_data_raw = [row for row in reader]

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\ankihub_client\ankihub_client.py", line 602, in <listcomp>
    notes_data_raw = [row for row in reader]

  File "csv", line 111, in __next__

_csv.Error: field larger than field limit (131072)


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


Traceback (most recent call last):

  File "aqt.taskman", line 122, in _on_closures_pending

  File "aqt.taskman", line 71, in <lambda>

  File "aqt.taskman", line 90, in wrapped_done

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 40, in on_install_done
    on_done(future_with_exception(e))

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\ankihub_sync.py", line 56, in <lambda>
    on_done=lambda future: on_new_deck_subscriptions_done(

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\ankihub_sync.py", line 24, in on_new_deck_subscriptions_done
    on_done(future_with_exception(future.exception()))

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\auto_sync.py", line 74, in sync_with_ankiweb
    future.result()

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

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

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 38, 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\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 86, in <lambda>
    task=lambda: _download_and_install_decks_inner(ankihub_dids),

  File "C:\Users\tester\AppData\Roaming\Anki2\addons21\1322529746\gui\operations\deck_installation.py", line 115, in _download_and_install_decks_inner
    raise exceptions[0]

1322529746.gui.exceptions.DeckDownloadAndInstallError: Error while downloading and installing deck 586d9d05-8801-4074-b06b-78bffb71e360: field larger than field limit (131072)

Sentry link (for developers)

jan · September 13, 2023, 8:13am

@nephroboy @jonathan_strohm
The fix is online. Please give it another try. Installing the Deck should work fine now. Thanks for the report.

Oh @abdo.nh please mind the potential OverflowError your snippet produces (in case you want to push that to the addon)

abdo.nh · September 13, 2023, 9:37am

Someone hit that error already: Specific Deck can not be downloaded - #4 by papenbro

We won’t increase the field length limit for now (I thought the deck had a legitimate need for huge fields).

Brian_BH · August 15, 2024, 12:18am

2 posts were merged into an existing topic: Downloading deck dialogue forever, stuck

Topic		Replies	Views
Zankiphil - Klinik; error when downloading the deck 📖 AnkiHub Decks add-on-error	2	227	September 12, 2023
Specific Deck can not be downloaded 🙋 Support	5	316	September 12, 2023
Cannot sync with BNB 🐛 Bug add-on-error	1	60	April 20, 2024
Ankihub Step Deck Installation Error 🐛 Bug add-on-error	19	539	August 23, 2023
Anki is not allowing me to download the anking deck 🐛 Bug add-on-error	1	71	March 4, 2024

Can't sync or download decks from ankihub

Related topics