title: Build Failed in blackberry phonegap application
body: <p>When i am trying to build new blackberry phonegap application using the instructions of phonegap site. I got an error like</p>
  
  <pre><code>Buildfile: build.xml
  [taskdef] Could not load definitions from resource net/sf/antcontrib/antcontrib.properties. It could not be found.
  
  BUILD FAILED
  Target "create" does not exist in the project "Build and Deploy a PhoneGap BlackBerry WebWorks Project". 
  </code></pre>
  
  <p>By running the command prompt. 
  Can any one give me a solution.</p>