GWT issues when using RPC

I have spend more than one day trying to create a very simple hello world application in GWT but I am not being successfu开发者_如何学编程l. I am trying to get a hello string from the server through RPC and display it on the client.

Thanks

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• Download a fresh copy of Eclipse Helios for java EE
• Install the appropriate GWT Eclipse plugin
• Start Eclipse, go to File->New Project, search for Google/Web Application Project
• Project properties, Run As... Web Application

At this point you should have a fully functional GWT application.