Cause
It was not possible to delete the specified topo_geometry layer from the topology.
It was not possible to delete the specified topo_geometry layer from the topology.
Check USER_SDO_TOPO_METADATA to see if the specified topo_geometry layer is part of the topology. Only those topo_geometry layers which are part of the topology can be deleted from it.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
https://community.oracle.com/message/2372792
Browse all solutions to database errors from Oracle, MS SQL, or MySQL