FlexCPD ANT task error

FlexPMD is working like a charm but I got the following error when trying to use FlexCPD:

taskdef A class needed by class com.adobe.ac.cpd.ant.FlexCpdAntTask cannot be found: net/sourceforge/pmd/cpd/Renderer

This is my task definition:

<taskdef name="cpd" classname="com.adobe.ac.cpd.ant.FlexCpdAntTask" classpath="${jar.dir}/flex-pmd-cpd-ant-task-${flexpmd.version}.jar">
        <classpath>
            <pathelement location="${jar.dir}/flex-pmd-files-${flexpmd.version}.jar" />
            <pathelement location="${jar.dir}/flex-pmd-cpd-${flexpmd.version}.jar" />
            <pathelement location="${jar.dir}/as3-plugin-utils-${flexpmd.version}.jar" />
            <pathelement location="${jar.dir}/as3-parser-${flexpmd.version}.jar" />
            <pathelement location="${jar.dir}/as3-parser-api${flexpmd.version}.jar" />
            <pathelement location="${jar.dir}/pmd-4.2.5.jar" />
        </classpath>
</taskdef>

Am I missing a JAR? I copied the task definition from FlexCPD page

Any Clue?

UPDATED:

I got a similar issue with Metrics:

taskdef A class needed by class com.adobe.ac.pmd.metrics.ant.FlexMetricsAntTask cannot be found: org/dom4j/DocumentException

FlexPMD still works fine...

Thanks,

Diego