Setting up development environment - missing modules

Hi,

I'm closely following this page:

http://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/setting_up_environment.html

however:

 if I open the checkouted project, I end up with badly set vcs roots (inexisting paths related to android) and with missing modules(26 of them). 

What can I do with that except for removing them?

M.