SAP Message /BEF/GENERATOR204 - Screen &1 (program &2) was NOT copied to screen &3 (program &4)

Diagnosis
Screen &V1& of program &V2& could not be copied.

System Response
Generation of program &V4& is incomplete.

Procedure
Check screen &V1& of program &V2& for possible syntax errors. If noneare found, contact your system administrator.