Abstract generator's "database could not create net named" error

initially abstract generator was complaining about two pins being shorted in the top level cell (this is normal). So I excluded those two pins by adding the following to the PinsTextManipulation option:

pinName1 {} pinName2 {}

Now I am getting the following error:

ERROR (ABS-520): Cell : database could not create net named

WARNING (ABS-506): Cell :no pin will be created for the text label PinName1 at (0,798800) because no overlapping geometry exists for this text label. The abstract generator creates pins corresponding to geometries that overlap the text labels specified in the "Map text labels to pins" field on the "Map" tab. Therefore, while updating this field with pin mapping specification, ensure that geometries exist below the text labels specified. If the field has been left blank, ensure that the default value used by abstract generator is appropriate for the situation. You can also check to ensure that the GDSII layout data has been imported into the abstract generator on correct layers. If not, check that the layer.map file is correct.

Any ideas?
Thanks