Source:  ZENworks for Servers; Policy and Distribution Services; Tiered Electronic Distribution; Distributor Agent

Explanation:  In ZfS 3, the concept of "Distribution agent" became "Distribution type" (File, FTP, HTTP, RPM, Policy Package, Software Package, and Desktop Application), which describes what is being distributed.

Possible Cause:  You have not yet provided the information on the Type property page of the Distribution object in eDirectory.

Action:  Fully configure the Distribution before attempting to build and send it. See Creating and Configuring Distributions in Policy and Distribution Services in the Administration guide.