I am just rewriting an old project in a newer one and while copying tiles-definition files I was getting an issue on "controllerClass" attribute which is pointing towards a java class which is the controller class for a particular jsp
This is the exact issue "Attribute "controllerClass" must be declared for element type "definition"."
in struts-tiles where all the attribute are defined there is in definition tag
<attribute>
<name>controllerClass</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
</attribute>