SAP Message /SAPCND/GEN_CODE122 - Internal error in &1 for development class &2

Diagnosis
When generating a workbench object, the check for the existance ofdevelopment class &V2& could not be executed because of an error infunction module &V1&.

System Response
Generation is terminated.

Procedure
Check the development class in the ABAP workbench, and the datatransferred to generation. If necessary, contact SAP.