What does this error message mean ?

[jg.lee]

I am doing VCS-Nanosim Mixed simulation and the following error
messages occur. Even though this errors occur, simulation results seem
to be correct. I am looking for your comments.

[First Error Message ------------------------------------------]
Warning-[MASFNF] Module in analog setup file not found
Module 'LIB_C3' in analog setup file statement starting at
line 31 not found, ignored.

-> I do not use 'LIB_C3' module in current design. what is the "analog
setup file" ? How can I remove this error message ?


[Second Error Message ------------------------------------------]

*** $sdf_annotate() version 1.2R
*** SDF file: "/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf"
*** Annotation scope: test_top.i0
*** MTM selection: "MAXIMUM"
*** No SCALE FACTORS argument specified
*** No SCALE TYPE argument specified
*** SCALE FACTORS defaulted to "1.0:1.0:1.0":
*** SCALE TYPE defaulted to: "FROM_MTM"
*** Turnoff delay: "FROM_FILE"
*** Approximation (mipd) policy: "MAXIMUM"

*** SDF annotation begin: Tue Aug 23 21:24:35 2005


SDF Info: +pulse_r/100, +pulse_e/100 in effect
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:98, SDF Error: Instance
i2.l1 of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:108, SDF Error: Instance
i2.l0 of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:118, SDF Error: Instance
i2.gor of type "OR2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:128, SDF Error: Instance
i2.gnan of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:138, SDF Error: Instance
i1.l1 of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:148, SDF Error: Instance
i1.l0 of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:158, SDF Error: Instance
i1.gor of type "OR2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:168, SDF Error: Instance
i1.gnan of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:178, SDF Error: Instance
i0.l1 of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:188, SDF Error: Instance
i0.l0 of type "NAN2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:198, SDF Error: Instance
i0.gor of type "OR2D1" cannot be found under "test_top.i0"
/homes/XXXXX/WORKS/XXXXX/synth/run/netlist.sdf:208, SDF Error: Instance
i0.gnan of type "NAN2D1" cannot be found under "test_top.i0"

Total errors: 12
Total warnings: 0
*** SDF annotation completed: Tue Aug 23 21:24:35 2005

--> It seems that these modules are replace with hspice netlist module
and I think that the raplacement causes this error message. Anyway, is
there anyway to remove this error message although it does not concern
in simulation results ?

Truly appreciate.

Regards,

Jeong-Gun