Buildng Deby for Beaglebone Black

[Luther Goh Lu Feng]

I read on this presentation that Deby supports Beaglebone Black[1]. I tried with the steps listed at the git repo README[2] and change machine in 

build/conf/local.conf to:

MACHINE ?= "beaglebone"

However, I get the error

ERROR:  OE-core's config sanity checker detected a potential misconfiguration.

    Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).

    Following is the list of potential problems / advisories:

    Please set a valid MACHINE in your local.conf or environment

Please advise me how I can safely resolve this error. Thanks!

[1] http://events.linuxfoundation.org/sites/events/files/slides/ISAR-DEBY-OSSJ2017_r10.pdf

[2] https://github.com/meta-debian/meta-debian