Erel,
this is what I did,
- copy debug key from installed folder of basic4android to my root project path,
- rename debug key to myproject.keystore
- from tools->Private Sign Key->browse myproject.keystore supplied password then OK.
- compile my application
- then error..
everything of all I've done is because for this reason :
- make the key as production key and not debug key
- can distribute my project specially the to next developer with different pc/laptop (for now only my laptop can compiled the project with debug key for upload to playstore)
wish it possible..