# Building errors with mangoh yellow **URL:** \ **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:** 13\ **Page:** 1
**Author:** ![marckasse](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marckasse](https://mangoh.discourse.group/u/marckasse)\ **Post date:** [December 3, 2020, 9:05am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/1 "2020-12-03T09:05:54Z")
I am having this issue. Could somebody help me to solve this? ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/2/220d614e456c80fdd9052bdfdd364f70dcfbfc9f.png) To complete the installation, I enabled the OCTAVE by putting OCTAVE == 0. Otherwise, it could not work. And now I tried to set to 1 (see previously in forum: [Make yellow error](https://mangoh.discourse.group/t/make-yellow-error/5632/13)). Should I leave it to 0 or 1? ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/3/34617db27b52523f2c5d30d39e19dab0fbf4d0e0.png) ---
**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")
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 ---
**Author:** ![marckasse](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marckasse](https://mangoh.discourse.group/u/marckasse)\ **Post date:** [December 3, 2020, 9:23am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/3 "2020-12-03T09:23:26Z")
Yes I built it before but did not pay attention to the errors. I am using leaf so I do not have a folder for legato. See what I have when doing a research ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/d/d961212a7b5f059ad4aa19899e842e2c750cd042.png) ---
**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, 9:26am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/4 "2020-12-03T09:26:10Z")
then how did you build it last time? ---
**Author:** ![marckasse](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marckasse](https://mangoh.discourse.group/u/marckasse)\ **Post date:** [December 3, 2020, 9:26am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/5 "2020-12-03T09:26:21Z")
Oh you mean go back to OCTAVE==1 by modifying the code the same way I did? Octave == 1 is only if I want to connect to OCTAVE platform right? ---
**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, 9:27am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/6 "2020-12-03T09:27:05Z")
no, in the previous post, you can build it without building the OCTAVE. ---
**Author:** ![marckasse](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marckasse](https://mangoh.discourse.group/u/marckasse)\ **Post date:** [December 3, 2020, 9:28am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/7 "2020-12-03T09:28:16Z")
> [@jyijyi](#): > > us post, you can b I manage to install leaf environment by putting OCTAVE == 0 but after it never achieved to build without error. ---
**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, 9:30am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/8 "2020-12-03T09:30:56Z")
in the previous post, you can set up the toolchain path: TOOLCHAIN\_DIR=/home/marc/myWorkspace/leaf-data/MANGOH-YELLOW-WP77XX/mangOH-yellow-wp77xx-toolchain/sysroots/x86\_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi TOOLCHAIN\_PREFIX=arm-poky-linux-gnueabi- OCTAVE=1 Maybe you need to go to the legato framework and type: . bin/configlegatoenv make wp77xx ---
**Author:** ![marckasse](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marckasse](https://mangoh.discourse.group/u/marckasse)\ **Post date:** [December 3, 2020, 9:45am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/9 "2020-12-03T09:45:33Z")
> [@jyijyi](#): > > /home/marc/myWorkspace/leaf-data/MANGOH-YELLOW-WP77XX/mangOH-yellow-wp77xx-toolchain/sysroots/x86\_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi > TOOLCHAIN\_PREFIX=arm-poky-linux-gnueabi- Ok I will try but I noticed that I don’t have arm-poky-linux-gnueabi in the path you give ---
**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, 9:56am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/10 "2020-12-03T09:56:39Z")
that path is coming out from your previous post!!! ---
**Author:** ![marckasse](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marckasse](https://mangoh.discourse.group/u/marckasse)\ **Post date:** [December 3, 2020, 10:37am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/11 "2020-12-03T10:37:08Z")
> [@jyijyi](#): > > post!!! Oh yes you right! Correction: I don’t have anymore the arm-poky-linux-gnueabi… It means that I need to reinstall? I am confused whether or not I have to follow this process to install toolchain. I thought that using leaf allows to avoid all these steps… > **[Install/Remove Legato - Legato Docs](https://docs.legato.io/17_10/basicBuildLegato.html#buildToolchain)** > > legato™ is an open source Linux-based embedded platform designed to simplify connected IoT application development ---
**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, 10:43am UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/12 "2020-12-03T10:43:09Z")
I think you need to redownload the package ---
**Author:** ![marckasse](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marckasse](https://mangoh.discourse.group/u/marckasse)\ **Post date:** [December 3, 2020, 6:55pm UTC](https://mangoh.discourse.group/t/building-errors-with-mangoh-yellow/5771/13 "2020-12-03T18:55:20Z")
Ok I reinstalled and it works! with the make yellow\_wp77xx without error. Thanks