Perforce Optional Tasks

[Marcus]

I have put in the optional.jar and the oro.jar file in /ant/lib and I still get:
BUILD FAILED

p:\cpdev\main\src\run_build.xml:23: Could not create task of type: classpath. Co
mmon solutions are to use taskdef to declare your task, or, if this is an option
al task, to put the optional.jar in the lib directory of your ant installation (
ANT_HOME).
        at org.apache.tools.ant.UnknownElement.makeTask(UnknownElement.java:153)

        at org.apache.tools.ant.UnknownElement.maybeConfigure(UnknownElement.jav
a:83)
        at org.apache.tools.ant.Task.perform(Task.java:216)
        at org.apache.tools.ant.Target.execute(Target.java:184)
        at org.apache.tools.ant.Target.performTasks(Target.java:202)
        at org.apache.tools.ant.Project.executeTarget(Project.java:601)
        at org.apache.tools.ant.Project.executeTargets(Project.java:560)
        at org.apache.tools.ant.Main.runBuild(Main.java:454)
        at org.apache.tools.ant.Main.start(Main.java:153)
        at org.apache.tools.ant.Main.main(Main.java:176)

Thanks
Marcus