# Cannot read properties of undefined

**URL:** <https://community.plotly.com/t/cannot-read-properties-of-undefined/67103>\
**Category:** Dash Python\
**Created:** [August 18, 2022, 2:38pm UTC](https://community.plotly.com/t/cannot-read-properties-of-undefined/67103 "2022-08-18T14:38:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Croll12](https://avatars.discourse-cdn.com/v4/letter/c/94ad74/32.png) [@Croll12](https://community.plotly.com/u/Croll12)\
**Post date:** [August 19, 2022, 12:55pm UTC](https://community.plotly.com/t/cannot-read-properties-of-undefined/67103/2 "2022-08-19T12:55:39Z")

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I have seen numerous bug reports and other topics about this, but none are resolved. Any assistance would be greatly appreciated.

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_[View the full topic](https://community.plotly.com/t/cannot-read-properties-of-undefined/67103)._