Error when setting EL expression

Question

Hi,
Please help me to resolve this issue
Error is:
visible="#{pageFlowScope.Category.catType eq 'MC'}": Missing Resource in EL implementation: ???propertyNotReadable???
  at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:111)
use case
I have a popup and there is a tab control inside. tab has three
show detal item. i have to set visibility depending up on
the value of a variable
example: if variable cattype="MC" then show only first showDetailItem
  if variable cattype="SC" then show only secoond showDetailItem
  if variable cattype="SSC" then show only Third showDetailItem  
so i put the below EL expression in visible property of 1st showDetailItem       
visible="#{pageFlowScope.Category.catType eq 'MC'}
when i am calling popup i am getting the error i mentioned above
popup calling method
  public void showPopup(ActionEvent actionEvent) {
        FacesContext context = FacesContext.getCurrentInstance();
        UIComponent source = (UIComponent)actionEvent.getSource();
        RichPopup.PopupHints hints = new RichPopup.PopupHints();
  popCat.show(hints); // popCat is a binding property of popup
Sujith

Answer 1

Hi,
you provide a lot of information, none however on the real problem area, which is
#{pageFlowScope.Category.catType eq 'MC'}
The error message basically tells you that it cannot access "catType" as a property. So did you verify catType base a setCattype and getCatType method in the referenced managed bean and that the managed bean is defined in the task flow configuration file it is used in ?
Frank