Erreur déploiement NetBeans 6.1

Bonjour,

je recontre une erreur lors que j'essaie de déployer mon application d'entreprise.
Voici le log :

Code:

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Browsing: ${client.url}
java.net.MalformedURLException: no protocol: ${client.url}
        at java.net.URL.<init>(URL.java:567)
        at java.net.URL.<init>(URL.java:464)
        at java.net.URL.<init>(URL.java:413)
        at org.netbeans.modules.ant.browsetask.NbBrowse.execute(NbBrowse.java:75)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        at sun.reflect.GeneratedMethodAccessor294.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:357)
        at org.apache.tools.ant.Target.performTasks(Target.java:385)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
        at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
        at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:277)
        at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:460)
        at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:151)
BUILD FAILED (total time: 1 second)

Quelqu'un sait-il comment y remédier?