Sorry, I could not reproduce the problem, here is the exact same example as yours: https://codepen.io/svetoslavjqwidgets/pen/GRYEYEN
You may see that an error is not received.
May please check your version of Smart UI, you can also send us a demo with the problem.
Moreover, the error appears already when entering
locale = “it”
https://disk.yandex.ru/i/aFbKrj7P9P5ByA
but when using
<smart-grid locale=”it” id=”grid”></smart-grid>
everything happens normally and in the console
you can see that
?grid.locale
To learn how to localize the Grid, refer to https://www.htmlelements.com/demos/grid/localization/.
In addition, please, if you share links, share links to github, codepen, stackblitz or similar sources. We would not open any other links.