I'm working with the version of liferay 6.2.5, and the content Newsletters. My problem is this: When I try to create a template, for the newsletter; mainly when adding the HTML file. On the site, this causes me this error: Portlet is unavailable. On Eclipse, here is the error displayed: See below. Would you know the source of this error and how to solve it. Thank you
javax.portlet.PortletException: java.lang.NoClassDefFoundError: net/htmlparser/jericho/Source
at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:181)
at com.liferay.util.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:249)
at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:90)
at com.liferay.util.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:212)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:71)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)...
...Caused by: java.lang.NoClassDefFoundError: net/htmlparser/jericho/Source
at com.beorn.newsletter.service.impl.TemplateLocalServiceImpl.removeScripts(TemplateLocalServiceImpl.java:319)
at com.beorn.newsletter.service.impl.TemplateLocalServiceImpl.processTemplateContent(TemplateLocalServiceImpl.java:241)
at com.beorn.newsletter.service.impl.TemplateLocalServiceImpl.addTemplate(TemplateLocalServiceImpl.java:87)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)