title: How do I fix 'Unexpected element "{}target" {antlib:org.apache.tools.ant}target' errors in my Ant build?
body: <p>When I run my Ant build it fails with the following exception:</p>
  
  <pre><code>Unexpected element "{}target" {antlib:org.apache.tools.ant}target
  </code></pre>
  
  <p>I'm using Eclipse 3.4.2.</p>
  
  <p>Please let me know what I'm missing here.</p>