title: How to build a JAR file using Netbeans 8.0.2?
body: <p>I am trying to create and extension file using NetBeans for my smart fox server 2x. I am following a video tutorial and when the instructor in the video says to build your project (via the little hammer icon) to create the JAR file, well, my hammer icon is disabled. </p>
  
  <p>My question is: How do I enable it? Many thanks in advance!</p>