Cause
The drop_topology procedure was invoked for a topology that has assocated topo_geometry layers with it.
The drop_topology procedure was invoked for a topology that has assocated topo_geometry layers with it.
Delete the topo_geometry layers from the topology before dropping the topology. Use SDO_TOPO.delete_topo_geometry_layer to delete topo_geometry layers from the topology.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
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