Estou seguindo os exemplos do livro core JSF 3 edição, e neste trecho de codigo ele da erro disendo que o componente nao esta declarado, alguem tem ideia do que estou fazendo de errado, Obrigado.
O erro acontece por ele não encontrar esta linha.
xmlns:corejsf="http://java.sun.com/jsf/facelets">
<!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:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:corejsf="http://java.sun.com/jsf/facelets">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>TODO supply a title</title>
</head>
<body>
<ui:composition>
<h:form>
<corejsf:planet name="mercury"
image="#{resource['images:Mercury.gif']}"/>
<corejsf:planet name="venus"
image="#{resource['images:Venus.gif']}"/>
<corejsf:planet name="earth"
image="#{resource['images:Earth.gif']}"/>
<corejsf:planet name="mars"
image="#{resource['images:Mars.gif']}"/>
<corejsf:planet name="jupiter"
image="#{resource['images:Jupiter.gif']}"/>
<corejsf:planet name="saturn"
image="#{resource['images:Saturn.gif']}"/>
<corejsf:planet name="uranus"
image="#{resource['images:Uranus.gif']}"/>
<corejsf:planet name="neptune"
image="#{resource['images:Neptune.gif']}"/>
</h:form>
</ui:composition>
</body>
</html>
