"Back template has a problem"

[kayx23]

Hello there, I downloaded and opened the .apkg. The two cards were imported into "Themes" but when I tried to view the cards, they show

Back template has a problem: Found '⁨{{! Anki only}}⁩', but there is no field called '⁨! Anki only⁩'

Is there anything I can do to fix it?

Thanks!

[abdulrcs]

had the same problem, have you found the solution yet?

[readybuilderone]

had the same problem too

[Goratra]

I had the same issue. I just deleted '⁨{{! Anki only}}⁩' and it did the job

[Arthur-Milchior]

For an explanation: up until last year, probably 2.1.28, anki used a tool called mustache, and "{{!foo}}" was interpreted as a comment. This was removed, and anyway, as the author seems to know, it is useless since html allow for comments <!-- comment -->

[Arthur-Milchior]

Note that {{{foo}}} is not valid anymore, this now leave a trailing }

[peter-moran]

Would fixing this be as simple as removing the use of {{{triple braces}}} and {{! brace comments}} from files in https://github.com/badlydrawnrob/anki/tree/8a1b6f75bad54131a58485538a0b217966238d75/source/themes/cards?