# Common errors?

**URL:** <https://forum.makecode.com/t/common-errors/22543>\
**Category:** Arcade\
**Created:** [September 18, 2023, 4:45am UTC](https://forum.makecode.com/t/common-errors/22543 "2023-09-18T04:45:22Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![Vegz78](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/vegz78/32/1201_2.png) [@Vegz78](https://forum.makecode.com/u/Vegz78)\
**Post date:** [September 20, 2023, 9:06pm UTC](https://forum.makecode.com/t/common-errors/22543/13 "2023-09-20T21:06:59Z")

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I’ve had some fun with the error “e.findIdx is not a function” also, when [trying to mix text and numbers in two-dimensional arrays](https://forum.makecode.com/t/makecode-memes/21457/58)…

[Gotta love them grey blocks!](https://forum.makecode.com/t/makecode-memes/21457/107)

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