You could print some extra infos ...

<echo>
  Ant Version: ${ant.version}
  Ant Home   : ${ant.home}
  Classpath  : ${java.class.path}
</echo>

Maybe that helps...

Jan

>-----Ursprüngliche Nachricht-----
>Von: David Weintraub [mailto:qazwart@gmail.com] 
>Gesendet: Freitag, 6. Juli 2007 18:17
>An: Ant Users List
>Betreff: Exception Error in <condition> Task
>
>I have a build.xml file that contains the <condition> task like this:
>
><condition
>    property="tarball.name"
>    value="${label}.arm.tgz"
>    else="arm.tgz">
>    <isset property="label"/>
></condition>
>
>When I run this file, the condition operation works. However, when I
>run the same build from CruiseControl, I get the following error:
>
>/home/build/build/ARM/arm/build.xml:94: Class
>org.apache.tools.ant.taskdefs.ConditionTask doesn't support the "else"
>attribute.
>	at 
>org.apache.tools.ant.IntrospectionHelper.setAttribute(Introspec
>tionHelper.java:516)
>	at 
>org.apache.tools.ant.RuntimeConfigurable.maybeConfigure(Runtime
>Configurable.java:368)
>	at 
>org.apache.tools.ant.RuntimeConfigurable.maybeConfigure(Runtime
>Configurable.java:322)
>	at org.apache.tools.ant.Task.maybeConfigure(Task.java:254)
>	at 
>org.apache.tools.ant.UnknownElement.configure(UnknownElement.java:189)
>	at 
>org.apache.tools.ant.UnknownElement.maybeConfigure(UnknownEleme
>nt.java:158)
>	at org.apache.tools.ant.Task.perform(Task.java:363)
>	at org.apache.tools.ant.Target.execute(Target.java:341)
>	at org.apache.tools.ant.Target.performTasks(Target.java:369)
>	at org.apache.tools.ant.Project.executeTarget(Project.java:1214)
>	at 
>org.apache.tools.ant.Project.executeTargets(Project.java:1062)
>	at org.apache.tools.ant.Main.runBuild(Main.java:673)
>	at org.apache.tools.ant.Main.startAnt(Main.java:188)
>	at org.apache.tools.ant.launch.Launcher.run(Launcher.java:196)
>	at org.apache.tools.ant.launch.Launcher.main(Launcher.java:55)
>
>According to the documentation, The "else" parameter was added to the
><condition> task back in Ant 1.3, and the only two revisions of Ant I
>have are Ant 1.7 and Ant 1.65. (And, I am using Ant 1.7 in
>CruiseControl). Even weirder is that there is another CruiseControl
>project that has a similar <condition> task using the "else"
>parameter, and it works. In both projects, CruiseControl is simply
>calling build.xml with ant, so I don't think there's some sort of
>environmental difference between the two.
>
>Is there something I should be looking for?
>
>--
>David Weintraub
>qazwart@gmail.com
>
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