Liferay + Portlet + TextArea

Hello i am newbie to development under Vaadin framework. I created liferay (6.0.6) vaadin portlet. It’s work nice, but when i try to create TextArea component an error occupy

Widgetset does not contain implementation for com.vaadin.ui.TextArea. 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:

What does it mean? and what to do?

Refer :

Try steps suggested by “Henri Kerola”

“If you update vaadin.jar in your Liferay installation, you have to update static theme and widgetset files too. If your Liferay uses Tomcat, themes and widgetsets locate at LIFERAY_HOME/tomcat-6.0.29/webapps/ROOT/html/VAADIN.”[b]


Or use
Vaadin Control Panel for Liferay