Error in LiferayIPC deployment

Hi all!

I’m getting the following error when adding my Vaadin Portlet that uses liferayIPC to a page in Liferay:


18:53:08,487 ERROR [PortletServlet:97]
javax.portlet.PortletException: java.lang.NoClassDefFoundError: com/vaadin/addon/ipcforliferay/LiferayIPC

NOTES:

-I get no errors when compiling the portlet and when compiling the widgetset from within the Vaadin Control Panel in Liferay.

-Vaadin Specs from within the Control Panel:

Settings

Vaadin Jar Version

6.7.4
Change version
(newest stable version: 6.8.13)
Upgrade

GWT Jar Locations

/home/rguerrini/LiferayDevStudio/Liferay Developer Studio/liferay-portal-6.1.10-ee-ga1/tomcat-7.0.25/webapps/ROOT/WEB-INF/vaadin/gwt/2.3.0/gwt-dev.jar
/home/rguerrini/LiferayDevStudio/Liferay Developer Studio/liferay-portal-6.1.10-ee-ga1/tomcat-7.0.25/webapps/ROOT/WEB-INF/vaadin/gwt/2.3.0/gwt-user.jar

GWT Dependency

/home/rguerrini/LiferayDevStudio/Liferay Developer Studio/liferay-portal-6.1.10-ee-ga1/tomcat-7.0.25/webapps/ROOT/WEB-INF/vaadin/gwt/2.3.0/validation-api-1.0.0.GA.jar
/home/rguerrini/LiferayDevStudio/Liferay Developer Studio/liferay-portal-6.1.10-ee-ga1/tomcat-7.0.25/webapps/ROOT/WEB-INF/vaadin/gwt/2.3.0/validation-api-1.0.0.GA-sources.jar
Active Widget Set
com.vaadin.portal.gwt.PortalDefaultWidgetSet

Add-on Directory

/home/rguerrini/LiferayDevStudio/Liferay Developer Studio/liferay-portal-6.1.10-ee-ga1/tomcat-7.0.25/webapps/ROOT/WEB-INF/lib/
[re-scan]


Select Add-ons

Vaadin IPC for Liferay 1.0.0

Other Dependencies

none

-Have the liferay IPC jar in the tomcat-7.0.25/webapps/ROOT/WEB-INF/lib folder.

-liferay-plugin-package.properties:

name=November
module-group-id=liferay-ee
module-incremental-version=1
tags=
short-description=
change-log=
page-url=http://www.liferay.com
author=Liferay, Inc.
licenses=EE
portal-dependency-jars=
vaadin.jar,
vaadin-ipc-for-liferay-1.0.0.jar
speed-filters-enabled=true

Let me know if anyone needs more info on this issue!

Thanks in advance