# Building errors with mangoh yellow

**URL:** <https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771>\
**Category:** mangOH Yellow\
**Created:** [December 3, 2020, 9:05am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771 "2020-12-03T09:05:54Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\
**Post date:** [December 3, 2020, 9:14am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/2 "2020-12-03T09:14:36Z")

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didn’t you can build it before?

> [@Make yellow error](https://mangoh.discourse.group/t/make-yellow-error/5632/11):
>
> Yes, still OCTAVE=1 in log

You need to install the toolchain and go to the legato framework and set up the environment first:

e.g.

1. sh poky-swi-ext-glibc-x86\_64-meta-toolchain-swi-armv7a-neon-toolchain-swi-SWI9X07Y\_02.28.03.05.sh  
Toolchain will be installed in /opt/swi/

2. 

cd legato-19.02.0/  
make  
. bin/configlegatoenv

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