SAP Message UPWB075 - Internal error when creating the ABAP class for the BSP application

Diagnosis You had set up that your own class should be generated for the BSPapplication. At the same time you entered a class name. An erroroccurred when copying the class CL_UPWB_BSP_APPL to this class. Procedure The class name could be wrong. In the ABAP Workbench, copy the classCL_UPWB_BSP_APPL to a new class (with the class name you selected). Ifthis is successful, then inform SAP of the error.