Ruboto: Android SDK Tools is missing

Question

I'm trying to develop android apps using Ruboto. I can't seem to get it all up and running though. When I try to run something like:

ruboto gen app --package com.test.me --name Test --target android-17

I got the following output:

Found '/usr/bin/adb' but it is not in a proper Android SDK installation.
RuntimeError: The '<ANDROID_HOME>/tools' directory is missing.
Please set the ANDROID_HOME environment variable to a proper Android SDK installation.

I have followed the guide on the Ruboto git site (https://github.com/ruboto/ruboto/wiki/Environment-setup-for-ubuntu) but whatever I do, I still get that error. When I manually go to the directory, the tools directory isn't missing.

Some extra info:

• I am using Ubuntu 13.10.
• I installed every SDK after running android in the terminal.
• I am using jruby through rvm