Diagnosis
Structure &SYST-MSGV1& was not flagged in the ABAP dictionary with theenhancement classification (cannot be enhanced).
Generated structures in the BE Application are created with enhancementclassification 1, and all structures that are included in metadata as aresult of their settings, must have this classification.
Otherwise, generated structures cannot be activated.

System Response
The application cannot be generated in this status.

Procedure for System Administration
If this is an example of a user-defined structure, change theenhancement classification in the ABAP dictionary to the value 'Cannotbe enhanced', and activate the structure.
If this is a structure that is delivered by SAP in the standard, contactSAP.