Hi I was trying to build the Data loader by using the build file.I set the values in build.properties file also,but iam getting the following error

[axis-wsdl2java] java.lang.NoSuchMethodError: org.apache.axis.enum.Scope.getScop
e(Ljava/lang/String;Lorg/apache/axis/enum/Scope;)Lorg/apache/axis/enum/Scope;
[axis-wsdl2java] at org.apache.axis.tools.ant.wsdl.Wsdl2javaAntTask.execu
te(Wsdl2javaAntTask.java:207)
[axis-wsdl2java] at org.apache.tools.ant.UnknownElement.execute(UnknownEl
ement.java:275)
[axis-wsdl2java] at org.apache.tools.ant.Task.perform(Task.java:364)
[axis-wsdl2java] at org.apache.tools.ant.Target.execute(Target.java:341)
[axis-wsdl2java] at org.apache.tools.ant.Target.performTasks(Target.java:
369)
[axis-wsdl2java] at org.apache.tools.ant.Project.executeSortedTargets(Pro
ject.java:1216)
[axis-wsdl2java] at org.apache.tools.ant.Project.executeTarget(Project.ja
va:1185)
[axis-wsdl2java] at org.apache.tools.ant.helper.DefaultExecutor.executeTa
rgets(DefaultExecutor.java:40)
[axis-wsdl2java] at org.apache.tools.ant.Project.executeTargets(Project.j
ava:1068)
[axis-wsdl2java] at org.apache.tools.ant.Main.runBuild(Main.java:668)
[axis-wsdl2java] at org.apache.tools.ant.Main.startAnt(Main.java:187)
[axis-wsdl2java] at org.apache.tools.ant.launch.Launcher.run(Launcher.jav
a:246)
[axis-wsdl2java] at org.apache.tools.ant.launch.Launcher.main(Launcher.ja
va:67)

However iam not using the Perl version of ant.