UDF jar path is required for SalesForce Function Model

I created new source model by importing data from metamatrix demo SalesForce test account. On last page of importer, I checked the "Create a procedure for the GetUpdated operation." and "Create a procedure for the GetUpdated operation." Then I tried to generate a function model by following steps; the functional model is invalid.

Steps to reproduce:
1. right-click the sf.xmi: Modelling > Create SalesForce Function Model
2. Error log: missing UDF jar path