Cannot build for Android

When I hit build, it ask me to save and everything went fine. However, after the process is finished, nothing happen. There was no build folder where I told Unity to save.

Could anyone please tell me how to solve this problem? I'm using Unity basic with Android basic on Mac OSX, by the way.

EDITED : Wow, apparently I''m stupid (;_ ; ) I restarted Unity and try again and I can build .apk now. >_<;;

Anyway, another question then! Do I need to fill the Android Market Licensing (LVL) Public Key if I'm not gonna publish on Android Market? Android Market is now available for me yet so I'm thinking about going with Opera Mobile Store or Amazon Appstore. Can I just leave it blank?

 

Short answer is: yes.

 

No, you leave it blank. As far as I know, only paid applications on the android market need fill it in.