Vaadin Compile widgets(addons)

I need some help compiling the widgets of my vaadin project. I have downloaded an addon (FormSender) , because it an client-side component i have to Compile my wingets, when i click the Vaadin widgets compile button in eclipse, i get the following message :

Compiling widgetset com.example.vaadinproject.widgetset.VaadinprojectWidgetset
Updating GWT module description file...
Sep 28, 2011 10:32:50 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
INFO: Widgetsets found from classpath:
    org.vaadin.hene.popupbutton.widgetset.PopupbuttonWidgetset in jar:file:/home/s2padmin/workspace/VaadinProject/WebContent/WEB-INF/lib/popupbutton-1.2.1.jar!/
    com.vaadin.terminal.gwt.DefaultWidgetSet in jar:file:/home/s2padmin/workspace/VaadinProject/WebContent/WEB-INF/lib/vaadin-6.6.0.jar!/
    com.example.vaadinproject.widgetset.VaadinprojectWidgetset in file:/home/s2padmin/workspace/VaadinProject/src
    org.vaadin.risto.formsender.widgetset.FormsenderWidgetset in jar:file:/home/s2padmin/workspace/VaadinProject/WebContent/WEB-INF/lib/formsender-0.1.jar!/

Sep 28, 2011 10:32:50 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getAvailableWidgetSets
INFO: Search took 28ms
Done.
Starting GWT compiler
Sep 28, 2011 10:33:16 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getPaintablesHavingWidgetAnnotation
INFO: Searching for paintables..
Sep 28, 2011 10:33:17 AM com.vaadin.terminal.gwt.widgetsetutils.ClassPathExplorer getPaintablesHavingWidgetAnnotation
INFO: Search took 1075ms
Widgetset compilation completed

it looks good so far, a new file is being made in my project "widgetset.gwt.xml" it contains :

inherits name="org.vaadin.risto.formsender.widgetset.FormsenderWidgetset" 

but its not working ... i get the following message in my portlet :

Widgetset does not contain implementation for org.vaadin.risto.formsender.FormSen开发者_C百科der. Check its @ClientWidget mapping, widgetsets GWT module description file and re-compile your widgetset. In case you have downloaded a vaadin add-on package, you might want to refer to add-on instructions. Unrendered UIDL:

org.vaadin.risto.formsender.FormSender(NO CLIENT IMPLEMENTATION FOUND) id=PID7

Im working with eclipse, have liferay portal installed +vaadin addon.

have anyone seen something like this? is it because of liferay or something else , i have tryed lots of addons , but none of them is working.

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I have downloaded an liferay plugin wich compiles the Vaadin addons.I was running my application as a portlet on Liferay , so i needed to compile the shared widgetset on Liferay , the compile button of Vaadins eclipse plugin compiled the widgets to the project not to the Portal itself.

Addon :

Vaadin Control Panel for Liferay