SQL Server – Backend version is not supported to design database diagrams or tables. (MS Visual Database Tools)

This backend version is not supported to design database diagrams or tables. (MS Visual Database Tools)

Error Messages :
This backend version is not supported to design database diagrams or tables. (MS Visual Database Tools)

Cause  :
The database to which you are connected does not allow schema modification with the Visual Database Tools.

Resolution :
Be sure you are connected to the correct database or Use the correct version SQL Server Management tool.