# Jhead and svgo errors while running specs

**URL:** <https://meta.discourse.org/t/jhead-and-svgo-errors-while-running-specs/76799>\
**Category:** Development\
**Created:** [27 Dicembre 2017, 6:26am UTC](https://meta.discourse.org/t/jhead-and-svgo-errors-while-running-specs/76799 "2017-12-27T06:26:19Z")\
**Posts on this page:** 1\
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**Author:** ![dmitry\_fedyuk](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/dmitry_fedyuk/32/293153_2.png) [@dmitry\_fedyuk](https://meta.discourse.org/u/dmitry_fedyuk)\
**Post date:** [27 Dicembre 2017, 6:26am UTC](https://meta.discourse.org/t/jhead-and-svgo-errors-while-running-specs/76799/1 "2017-12-27T06:26:19Z")

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@techAPJ

«[Beginners Guide to Install Discourse on Ubuntu for Development](https://meta.discourse.org/t/topic/14727)».  
I use the latest stock version of Ubuntu Desktop ([16.04.3 LTS](http://releases.ubuntu.com/xenial/)) which is unmodified, without any extra packages previously installed apart from the guide’s previous steps packages .

The `bundle exec rake autospec` guide’s step fails:

 ![01](https://global.discourse-cdn.com/meta/original/3X/c/e/cea2aaa01374d3876a8d04e7fcd4d73d76718292.png)

> jhead worker: `jhead` not found; please provide proper binary or disable this worker (–no-jhead argument or `:jhead => false` through options)  
> svgo worker: `svgo` not found; please provide proper binary or disable this worker (–no-svgo argument or `:svgo => false` through options)

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