# Help with NetTrain error?

**URL:** <https://community.wolfram.com/t/help-with-nettrain-error/17514>\
**Category:** Questions\
**Tags:** data-science, statistics-and-probability, machine-learning\
**Created:** [January 29, 2021, 8:17pm UTC](https://community.wolfram.com/t/help-with-nettrain-error/17514 "2021-01-29T20:17:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![engphb](https://avatars.discourse-cdn.com/v4/letter/e/aca169/32.png) [@engphb](https://community.wolfram.com/u/engphb)\
**Post date:** [January 29, 2021, 8:17pm UTC](https://community.wolfram.com/t/help-with-nettrain-error/17514/1 "2021-01-29T20:17:32Z")

</div>

NetTrain: Data provided to port “Output” should be a non-empty list of length-2 vectors of real numbers, but was a length-36 vector of real numbers.  
The notebook code is in the link below:

[Open in Wolfram Cloud ↗](https://www.wolframcloud.com/obj/a884f449-da86-4ad2-81f0-6c357afaec59)