jsf - selectOneMenu HTTP Status 500 - Don't know how to iterate over supplied "items" -

I am trying to set a selectOneMenu list filled with Categorie name in the amp; In classification ID value, I am doing this like this:

  & lt; H: selectOneMenu id = "categorie" value = "# {adminRealisationController.categorie}" & gt; & Lt; C: forEach item = "# {listeCats}" var = "cat" & gt; & Lt; F: select item item label = "# {cat.nom}" item value = "# {cat.id}" /> & Lt; / C: foreach & gt; & Lt; / H: selectOneMenu & gt;   
 This listeCats is a JSF bean set here. What I am doing to remove the list from db  
  BeanFactory beanFactory = New XMLBeanFactory (New ClassPathResource ( "ApplicationContext.xml")); CategoriesPLC = (CategoriesPL) BeanFactorGetBean ("CategoriesPil"); SetListeCats (C.findAll ()); Titre = ""; Slug = ""; Categorie.setId (2); Description = ""; FacesContext.getCurrentInstance (). GetExternalContext (). GetRequestMap () Put ("listeCats", getListeCats ()); Return "Nuweview";   
 The property is set as an integral face in xml and I got this error when I try to submit the form:   
 
 
 This is the reason that  f: selectItems  is present, you should change it  
  & lt ; C: forEach items = "# {ListeCats}" var = "cat" & gt; & Lt; F: select item item label = "# {cat.nom}" item value = "# {cat.id}" /> & Lt; / C: foreach & gt;   
 by this (when JSF 2.0 is used)  
     
 Or through (when using JSF 1.X)  
  & lt; F: selectItems value = "# {listeCats}" />   
 Later, you can call  list & lt; SelectItem & gt; :  
  public list   
 Note: This is just an example, it is not efficient at all. The only thing to remember is that you need to change your  object  list to  SelectItem . Also,  value = "# {adminRealisationController.categorie}"  will not get a  string  and your  object will not be , so you can change it  
  More info: