PrimeFaces: Caused by: java.lang.IllegalStateException: CDATA tags may not nest

Caused by: java.lang.IllegalStateException: CDATA tags may not nest

in PrimeFaces.

This could be due to an inexisting reference value:

<p:confirmDialog id="confirmDialogExternal"

message=”#{messages[‘Remove-Question’]}”

header=”#{messages[‘Remove-Header’]}” severity=”alert”

widgetVar=”confirmDialogExternal”>

<p:commandButton id="confirm3" value="#{messages['Remove']}"

actionListener=”#{feedbackController.deleteObjective}”

oncomplete=”confirmDialogExternal.hide()” update=”activitiesExternal” />

<p:commandButton id="decline3" value="#{messages['Cancel']}"

onclick=”confirmDialogExternal.hide()” type=”button” />

If a control with ID activitiesExternal does not exist, then the error will happen.