Index: trunk/grails-app/i18n/messages.properties
===================================================================
--- trunk/grails-app/i18n/messages.properties	(revision 278)
+++ trunk/grails-app/i18n/messages.properties	(revision 284)
@@ -9,4 +9,5 @@
 asset.copy.method.help=Link creates a new asset and links it to EXISTING sub items. \
     While copy creates a new asset and new sub items.
+asset.copy.asset.required=Please select an asset to copy.
 
 sub.task.create.confirm=Immediately create and save a new sub task?