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"tag not found" Error

I am trying to implement a very simple RichFaces application (following the example in the developer's guide , but I am encountering an error that I cannot solve.

My code seems to build and deploy Tomcat (localhost) correctly, but when the index page opens, I get an exception:

javax.faces.view.facelets.TagException: /index.xhtml @13,19 <a4j:form> Tag Library supports namespace: http://richfaces.org/a4j, but no tag was defined for name: form

The index page I'm trying to load is as follows:

 <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich" xmlns:f="http://java.sun.com/jsf/core"> <h:head> <title>Facelet Title</title> </h:head> <h:body><f:view> <a4j:form> <rich:panel header="This is the title" style="width:400px;"> <h:outputText value="Enter your name:"/> <h:inputText value="#{MyBean.message}"> <f:validateLength minimum="1" maximum="20"/> </h:inputText> </rich:panel> </f:view></a4j:form> </h:body> </html>

This is the same as the example in the developer's guide, as far as I can tell. I am developing in NetBeans 6.8 using the JSF 2.0 implementation in MyFaces and adding RichFaces and Apache Commons jar as libraries, and the tag indicated by the exception is actually automatically offered by Netbeans!

From Apache Commons, I added:
beanutils, collections, digester, logging

From RichFaces I added: richfaces-api, richfaces-impl, richfaces-impl-jsf2, richfaces-ui

If it would be helpful to provide bean and / or web.xml code, say so, I just wanted to avoid a huge message, which could be a simple mistake.

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4 answers

For RichFaces 4.x use "rich: popupPanel". I got it from RichShowCase:

 <a4j:status onstart="#{rich:component('statPane')}.show()" onstop="#{rich:component('statPane')}.hide()" /> <h:form id="form"> <rich:dataTable value="#{carsBean.allInventoryItems}" var="car" iterationStatusVar="it" id="table" rows="15"> <rich:column> <f:facet name="header">#</f:facet> #{it.index} </rich:column> <rich:column> <f:facet name="header">Vendor</f:facet> <h:outputText value="#{car.vendor}" /> </rich:column> <rich:column> <f:facet name="header">Model</f:facet> <h:outputText value="#{car.model}" /> </rich:column> <rich:column> <f:facet name="header">Price</f:facet> <h:outputText value="#{car.price}" /> </rich:column> <rich:column> <f:facet name="header">Mileage</f:facet> <h:outputText value="#{car.mileage}" /> </rich:column> <rich:column> <f:facet name="header">VIN</f:facet> <h:outputText value="#{car.vin}" /> </rich:column> <rich:column> <a4j:commandLink styleClass="no-decor" execute="@this" render="@none" oncomplete="#{rich:component('confirmPane')}.show()"> <h:graphicImage value="/images/icons/delete.gif" alt="delete" /> <a4j:param value="#{it.index}" assignTo="#{carsBean.currentCarIndex}" /> </a4j:commandLink> <a4j:commandLink styleClass="no-decor" render="editGrid" execute="@this" oncomplete="#{rich:component('editPane')}.show()"> <h:graphicImage value="/images/icons/edit.gif" alt="edit"/> <a4j:param value="#{it.index}" assignTo="#{carsBean.currentCarIndex}" /> <f:setPropertyActionListener target="#{carsBean.editedCar}" value="#{car}" /> </a4j:commandLink> </rich:column> <f:facet name="footer"> <rich:dataScroller page="#{carsBean.page}" /> </f:facet> </rich:dataTable> <a4j:jsFunction name="remove" action="#{carsBean.remove}" render="table" execute="@this" oncomplete="#{rich:component('confirmPane')}.hide();" /> <rich:popupPanel id="statPane" autosized="true"> <h:graphicImage value="/images/ai.gif" alt="ai" /> Please wait... </rich:popupPanel> <rich:popupPanel id="confirmPane" autosized="true"> Are you sure you want to delete the row? <a4j:commandButton value="Cancel" onclick="#{rich:component('confirmPane')}.hide(); return false;" /> <a4j:commandButton value="Delete" onclick="remove(); return false;" /> </rich:popupPanel> <rich:popupPanel header="Edit Car Details" id="editPane" domElementAttachment="parent" width="400" height="170"> <h:panelGrid columns="3" id="editGrid"> <h:outputText value="Vendor" /> <h:outputText value="#{carsBean.editedCar.vendor}" /> <h:panelGroup /> <h:outputText value="Model" /> <h:outputText value="#{carsBean.editedCar.model}" /> <h:panelGroup /> <h:outputText value="Price" /> <h:inputText value="#{carsBean.editedCar.price}" required="true" requiredMessage="Price is required" id="price" converterMessage="Should be a valid price" validatorMessage="Should be a valid price" label="Price field"> <f:validateDoubleRange/> </h:inputText> <rich:message id="priceMsg" for="price" /> <h:outputText value="Mileage" /> <h:inputText value="#{carsBean.editedCar.mileage}" id="mage" converterMessage="Should be a valid mileage" validatorMessage="Should be a valid mileage" label="Mileage field" > <f:validateDoubleRange/> </h:inputText> <rich:message id="madeMsg" for="mage" /> <h:outputText value="VIN" /> <h:inputText value="#{carsBean.editedCar.vin}" id="vin" required="true" validatorMessage="Not a valid 17-digit VIN" converterMessage="Not a valid 17-digit VIN" requiredMessage="VIN is required"> <f:validateLength minimum="17" maximum="17" /> </h:inputText> <rich:message id="vinMsg" for="vin" /> </h:panelGrid> <a4j:commandButton value="Store" action="#{carsBean.store}" render="table" execute="editPane" oncomplete="if (#{facesContext.maximumSeverity==null}) {#{rich:component('editPane')}.hide();}" /> <a4j:commandButton value="Cancel" onclick="#{rich:component('editPane')}.hide(); return false;" /> </rich:popupPanel> </h:form>
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I am using Richfaces 3.3.3.Final with Myfaces 2.0.1 without any problems.

Make sure you add facelets-1.1.15.B1 and the following context options in web.xml

 <context-param> <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name> <param-value>com.sun.facelets.FaceletViewHandler</param-value> </context-param> <context-param> <param-name>javax.faces.DISABLE_FACELET_JSF_VIEWHANDLER</param-name> <param-value>true</param-value> </context-param>

and try the following modified snippet

 <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich" xmlns:f="http://java.sun.com/jsf/core"> <head> <title>Facelet Title</title> </head> <body> <a4j:form> <rich:panel header="This is the title" style="width:400px;"> <h:outputText value="Enter your name:"/> <h:inputText value="#{MyBean.message}"> <f:validateLength minimum="1" maximum="20"/> </h:inputText> </rich:panel> </a4j:form> </body> </html>

The problem with f:view was declared after the body, but closed before </a4j:form>

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Are you using RichFaces 3.x? I had the same problem lately (although in my case I could not use the JSF2.0 h button :), and my teammate was looking for something with the technology, and we just need to wait for RichFaces 4.0 (if you don't decide he really wants me to be able to ask him tomorrow at the link if he still has this).

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I see you added the richfaces-impl and richfaces-impl-jsf2 banners. According to the recommendation, you should add only the latter if using jsf 2.0.

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