For whatever reason Ant has been disabled in Zend Studio. Thankfully some rather nice guy by the name of Max Horvath has already stumbled upon this and solved it. In his post, dating back a year now, he describes how you first need to have Eclipse Java Development Tools installed. Once that is installed, you start a new “Java Project from Existing Ant Buildfile”. It will ask you if it should enable Ant, which you should say yes, and with that done, you can already cancel the wizard for this. Voila, Ant is installed.