# Signals submission errors

**URL:** <https://forum.numer.ai/t/signals-submission-errors/4754>\
**Category:** Signals\
**Created:** [January 9, 2022, 3:57am UTC](https://forum.numer.ai/t/signals-submission-errors/4754 "2022-01-09T03:57:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kgareth](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.numer.ai/kgareth/32/2318_2.png) [@kgareth](https://forum.numer.ai/u/kgareth)\
**Post date:** [January 9, 2022, 3:57am UTC](https://forum.numer.ai/t/signals-submission-errors/4754/1 "2022-01-09T03:57:18Z")

</div>

I am using the example code but get this error:  
ValueError: duplicate stocks submitted for the live period

Any idea how to fix or what I am missing?

Also, if this line is left  
#tournament = tournament.dropna(subset=[‘target’] + feature\_names)  
then the submission gets the error of no valid tickers submitted.

Thanks!