Android NDK not found

Environment and versions

uname -a

docker --version

Docker version 19.03.5, build 633a0ea

Command used

docker build .

Im trying to build using a custom build script for android with your docker images. I remember i did have this working a few months back, both with 2018 and 2019 version.

My unity version i am developing on is 2019.2.10f1 Personal and im using the matching android image

But i get android ndk not found when building?

Is there something obvious im missing?

Thanks