SAP Message /BEF/GENERATOR253 - Interface function &2 for class &1 does not exist

Diagnosis
The interface module that is stored in the metadata for the class doesnot exist.
The interfaces for the classes that need to be generated are generatedvia the interface modules. The name of the interface module is stored inthe metadata.

System Response
The class is not generated.

Procedure
Check whether the name of function module &V2& is correct.
If the name of the function module is correct, check whether functionmodule &V2& exists.
If the function module exists, contact your system administrator.
If the function module does not exist, correct the entry in themetadata.