# Python reference error hero not defined

**URL:** <https://discourse.codecombat.com/t/python-reference-error-hero-not-defined/7825>\
**Category:** Bugs\
**Created:** [June 1, 2016, 12:12am UTC](https://discourse.codecombat.com/t/python-reference-error-hero-not-defined/7825 "2016-06-01T00:12:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![stags44](https://avatars.discourse-cdn.com/v4/letter/s/e495f1/32.png) [@stags44](https://discourse.codecombat.com/u/stags44)\
**Post date:** [June 1, 2016, 12:12am UTC](https://discourse.codecombat.com/t/python-reference-error-hero-not-defined/7825/1 "2016-06-01T00:12:43Z")

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I started Code Combat yesterday and started with Python. Logging in today and trying the next level I’ve been receiving an error message 'reference error hero not defined try adding “Hero Placeholder”.

I tried some of the old levels that I completed and now all of them are showing this error message.

Suggestions on what I’m doing wrong?

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**Author:** ![nick](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.codecombat.com/nick/32/784_2.png) [@nick](https://discourse.codecombat.com/u/nick)\
**Post date:** [June 1, 2016, 1:51pm UTC](https://discourse.codecombat.com/t/python-reference-error-hero-not-defined/7825/2 "2016-06-01T13:51:06Z")

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Let’s chat in this thread: [Jacascript reference error hero not defined](https://discourse.codecombat.com/t/jacascript-reference-error-hero-not-defined/7827)