Data entity Customization - Build Issue

Hi All,

Working in AX7 Update 2 version. After customizing DirPartyEntity to add new custom datasource to it. When i regenerate and build the project, i receive the error message: - 

Error Field '_originalRecord.InstanceRelationType' is private and can only be referenced from within the element in which it is declared. dynamics://Class/__Persister__/Method/hasDataSourceRecordChanged_DS1 1733

Any idea or suggestions?

Thanks in advance,

Balakumar Kubendran