[afro@DellSon 1.1]$ android create project -n HelloWorld -t 2 -p /home/afro/Dokumenty/mobilne/1/1.1/ -k 'hello' -a MainActivity
Error: Package name 'hello' contains invalid characters.
A package name must be constitued of two Java identifiers.
Each identifier allowed characters are: a-z A-Z 0-9 _