Clicking on "Again" creates error

Anki Desktop
1

While using my ANKI deck, when I click on “Again” to see the card in <1m or <10m or whatever it may be, it produces this error:

Anki 2.1.54 (b6a7760c) Python 3.9.7 Qt 6.3.1 PyQt 6.3.1
Platform: Windows 10
Flags: frz=True ao=False sv=2
Add-ons, last update check: 2023-11-13 16:08:09

Caught exception:
Traceback (most recent call last):
File “aqt.reviewer”, line 488, in
File “aqt.reviewer”, line 446, in _answerCard
File “anki.scheduler.v2”, line 458, in answerCard
File “anki.scheduler.v2”, line 487, in _answerCard
File “anki.scheduler.v2”, line 840, in _answerRevCard
File “anki.scheduler.v2”, line 857, in _rescheduleLapse
File “anki.scheduler.v2”, line 589, in _moveToFirstStep
File “anki.scheduler.v2”, line 582, in _updateRevIvlOnFail
File “anki.scheduler.v2”, line 870, in _lapseIvl
TypeError: unsupported operand type(s) for *: ‘int’ and ‘NoneType’

image
image2734×1722 254 KB

2

Turn on v3 scheduler in tools → preferences

Might wanna check out recent releases
For add-on compatibility: 2.1.66

For latest version: 23.10.1, just search 23.10 in https://ankiweb.net/shared/addons/2.1 to see which add-ons are compatible with the newest version (some of them don’t have 23.10 but are compatible with 23.10 such as review heatmap, read the recent comments from the add-on page)

2 Likes
3

Updating to 23.10 should fix that error.

4

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