tengo el siguiente error con tomcat y jsf y no se como arreglarlo alguna sugerencia :
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Cannot find FacesContext
org.apache.jasper.runtime.PageContextImpl.doHandle PageException(PageContextImpl.java:830)
org.apache.jasper.runtime.PageContextImpl.handlePa geException(PageContextImpl.java:763)
org.apache.jsp.faces.index_jsp._jspService(index_j sp.java:87)
org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:105)
javax.servlet.http.HttpServlet.service(HttpServlet .java:860)
org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:336)
org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:251)
javax.servlet.http.HttpServlet.service(HttpServlet .java:860)
sun.reflect.GeneratedMethodAccessor72.invoke(Unkno wn Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:324)
org.apache.catalina.security.SecurityUtil$1.run(Se curityUtil.java:249)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject .java:500)
org.apache.catalina.security.SecurityUtil.execute( SecurityUtil.java:282)
org.apache.catalina.security.SecurityUtil.doAsPriv ilege(SecurityUtil.java:165)
root cause
javax.servlet.jsp.JspException: Cannot find FacesContext
javax.faces.webapp.UIComponentTag.doStartTag(UICom ponentTag.java:405)
com.sun.faces.taglib.jsf_core.ViewTag.doStartTag(V iewTag.java:105)
org.apache.jsp.faces.index_jsp._jspx_meth_f_view_0 (index_jsp.java:102)
org.apache.jsp.faces.index_jsp._jspService(index_j sp.java:74)
org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:105)
javax.servlet.http.HttpServlet.service(HttpServlet .java:860)
org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:336)
org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:251)
javax.servlet.http.HttpServlet.service(HttpServlet .java:860)
sun.reflect.GeneratedMethodAccessor72.invoke(Unkno wn Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:324)
org.apache.catalina.security.SecurityUtil$1.run(Se curityUtil.java:249)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject .java:500)
org.apache.catalina.security.SecurityUtil.execute( SecurityUtil.java:282)
org.apache.catalina.security.SecurityUtil.doAsPriv ilege(SecurityUtil.java:165)
note The full stack trace of the root cause is available in the Sun-Java-System/Application-Server logs.