[Nednil]

----------------------
3) Get Android SDK & NDK
----------------------
a) SDK tools
$ mkdir $HOME/android-sdk-linux

get the sdk tools from the link below:
https://dl.google.com/android/repository...-linux.zip
uncompress tools_r25.2.3-linux.zip to: /$HOME/android-sdk-linux/

$ cd /$HOME/android-sdk-linux/tools
$ ./android update sdk -u -t platform,platform-tool
$ ./android update sdk --all -u -t build-tools-20.0.0

I downloaded the latest Android SDK, and now the android command is depricated.
but I did this instead and it seems to work, as I build a kodi version that I am running on my Philips TV.

$ cd /$HOME/android-sdk-linux/Tools/bin

$./sdkmanager "platforms;android-25"
$./sdkmanager "platforms;android-21"
$./sdkmanager "platform-tools"
$./sdkmanagar "build-tools;25.0.3"

perhaps the install/update of android-25 is not necessary