title: Mule 3 - Loading from .properties file
body: <p>I'm using Mule 3 to query a database using JDBC, and I'd like to modify the query depending on input from a .properties file. I have this in my xml...</p>
  
  <pre><code>&lt;context:property-placeholder location="C:\path\to\file\settings.properties" /&gt;
  </code></pre>
  
  <p>Getting the following exception...</p>
  
  <pre><code>Exception in thread "main" org.mule.module.launcher.DeploymentInitException: SAXParseException: The prefix "context" for element "context:property-placeholder" is not bound.
  </code></pre>
  
  <p>Do I need to include some special .xsd file?</p>