Open CDISC 1.5 Issue

Hi

I am using Open CDSIC validator 1.5.

I am getting the following notice 'D:\OpenCDISC\opencdisc-validator\config/data/CDISC/SDTM/2015-12-18/SDTM Terminology.txt is missing or lacks necessary variables and cannot be used for this cross-dataset validation'

Please give me the solution.