# Fixing a "config.handlebars" undefined method error

**URL:** <https://meta.discourse.org/t/fixing-a-config-handlebars-undefined-method-error/39964>\
**Category:** Development\
**Created:** [February 22, 2016, 4:59am UTC](https://meta.discourse.org/t/fixing-a-config-handlebars-undefined-method-error/39964 "2016-02-22T04:59:51Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)\
**Post date:** [February 22, 2016, 5:06am UTC](https://meta.discourse.org/t/fixing-a-config-handlebars-undefined-method-error/39964/2 "2016-02-22T05:06:38Z")

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In general we don’t do dev on old releases, is there a reason you are setting up a dev environment for stable?

Its possible one of the security backports broke the dev mode, try rolling them back to see if that is the case.

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