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Thanks for this example; i have tried to run your main but i have this error:
Apr 13, 2014 11:33:58 AM org.ros.internal.node.client.Registrar <init> INFO: MasterXmlRpcEndpoint URI: http://localhost:11311 Apr 13, 2014 11:33:58 AM org.ros.internal.node.client.Registrar onPublisherAdded INFO: Registering publisher: Publisher<publisherdefinition<publisheridentifier<nodeidentifier< rosjava="" talker,="" http:="" localhost:46513=""/>, TopicIdentifier</rosout>>, Topic<topicidentifier< rosout="">, TopicDescription<rosgraph_msgs log,="" acffd30cd6b6de30f120938c17c593fb="">>>> Apr 13, 2014 11:33:58 AM org.ros.internal.node.client.Registrar callMaster INFO: Response<success, registered="" [="" rosjava="" talker]="" as="" publisher="" of="" [="" rosout],="" [http:="" ubuntu:42979="" ]>="" apr="" 13,="" 2014="" 11:33:58="" am="" org.ros.internal.node.topic.defaultpublisher$1="" onmasterregistrationsuccess="" info:="" publisher="" registered:="" publisher<publisherdefinition<publisheridentifier<nodeidentifier<="" rosjava="" talker,="" http:="" localhost:46513=""/>, TopicIdentifier</rosout>>, Topic<topicidentifier< rosout="">, TopicDescription<rosgraph_msgs log,="" acffd30cd6b6de30f120938c17c593fb="">>>> Apr 13, 2014 11:33:58 AM org.ros.internal.node.client.Registrar onPublisherAdded INFO: Registering publisher: Publisher<publisherdefinition<publisheridentifier<nodeidentifier< rosjava="" talker,="" http:="" localhost:46513=""/>, TopicIdentifier</chatter>>, Topic<topicidentifier< chatter="">, TopicDescription<std_msgs string,="" 992ce8a1687cec8c8bd883ec73ca41d1="">>>> Apr 13, 2014 11:33:58 AM org.ros.internal.node.client.Registrar callMaster INFO: Response<success, registered="" [="" rosjava="" talker]="" as="" publisher="" of="" [="" chatter],="" []>="" apr="" 13,="" 2014="" 11:33:58="" am="" org.ros.internal.node.topic.defaultpublisher$1="" onmasterregistrationsuccess="" info:="" publisher="" registered:="" publisher<publisherdefinition<publisheridentifier<nodeidentifier<="" rosjava="" talker,="" http:="" localhost:46513=""/>, TopicIdentifier</chatter>>, Topic<topicidentifier< chatter="">, TopicDescription<std_msgs string,="" 992ce8a1687cec8c8bd883ec73ca41d1="">>>> Apr 13, 2014 11:33:58 AM org.apache.xmlrpc.server.XmlRpcStreamServer execute
SEVERE: execute: Error while performing request org.apache.xmlrpc.server.XmlRpcNoSuchHandlerException: No such handler: requestTopic at org.apache.xmlrpc.server.AbstractReflectiveHandlerMapping.getHandler(AbstractReflectiveHandlerMapping.java:195) at org.apache.xmlrpc.server.XmlRpcServerWorker.execute(XmlRpcServerWorker.java:42) at org.apache.xmlrpc.server.XmlRpcServer.execute(XmlRpcServer.java:83) at org.apache.xmlrpc.server.XmlRpcStreamServer.execute(XmlRpcStreamServer.java:182) at org.apache.xmlrpc.webserver.Connection.run(Connection.java:175) at org.apache.xmlrpc.util.ThreadPool$MyThread.runTask(ThreadPool.java:71) at org.apache.xmlrpc.util.ThreadPool$MyThread.run(ThreadPool.java:87)
Do you have any idea whi I have this error?
Thanks