How to compile device tree on BBB with Android?

I try to compile device tree on BBB with Android. (http://bbbandroid.sourceforge.net/), but I got “/system/bin/sh: dtc: not found”. I thought I should type “wget -c https://raw.github.com/RobertCNelson/tools/master/pkgs/dtc.sh”, but I got “/system/bin/sh: wget: not found”. I thgoght I should install wget first, then I got “/system/bin/sh: apt-get: not found”.

How should I do to solve this?