+---
+layout: default
+title: Message detail for PLMC25
+toc: false
+---
+
+Detail for Marionette Collective message PLMC25
+===========================================
+
+Example Message
+---------------
+
+ aggregate method for action 'rpcutil' is missing a function parameter
+
+Additional Information
+----------------------
+
+DDL files can declare aggregation rules for the data returned by actions as seen below:
+
+ summarize do
+ aggregate summary(:collectives)
+ end
+
+This error indicates that you did not supply the argument - :collectives in this example.