i am creating my first application in zf2. i followed Zend Offical website zf2 Skeleton Application.i have downloaded the skeleton app from github as in in the given link.wh
You should open a cmd window and change directory to your project. You then need to type the following:
php composer.phar install
This will install all the library dependencies for the Zend Skeleton Application - ZF2 in this case.