what is this error in LVS..

[amitabh262002]

vldb cadence

Hi,
I am getting this error but not able to solve.
anyone knows how to solve this??


Loaded gpdk180/libInit.il successfully!
*WARNING* envSetVal: could not find tool[.partition] 'layoutXL'
*Error* schematic cell: gpdk180 nmos symbol
The schematic was never extracted or is not current in the schematics editor.
Use the `Check and Save' operation in the schematics editor to correct this.
The lastSchematicExtraction property is missing.
*Error* schematic cell: gpdk180 pmos symbol
The schematic was never extracted or is not current in the schematics editor.
Use the `Check and Save' operation in the schematics editor to correct this.
The lastSchematicExtraction property is missing.
3 error(s) encountered, vldb not generated
Error - dfIIToVldb failed to execute

*WARNING* /cad_area/Cadence/assura/tools/assura/bin/nvn exit with bad status
*WARNING* Status 256
*WARNING* Assura execution terminated

Finished /cad_area/Cadence/assura/tools/assura/bin/nvn

*WARNING* An error occurred during Nvn PreExtraction.
LVS preprocessing requires a successful run of Nvn.
Assura will now terminate.

*WARNING* Bad exit from child process .. 0x100


***** aveng terminated abnormally *****


*WARNING* /cad_area/Cadence/assura/tools/assura/bin/aveng exit with bad status
*WARNING* Status 256
*WARNING* Assura execution terminated


***** aveng fork terminated abnormally *****

 

[safwatonline]

dfiitovldb failed to execute

try to Check and save ur schematic view

 

[amitabh262002]

nvn pre extraction

ya i did that but still getting this error.

 

[fixrouter4400]

nvn exit with bad status status 256

Your PMOS/NMOS symbol are not correctly link to the schematic view. That's why you have this error.

If you have the CAD support team they will easily fix this thing.

Or you can check the symbol you might want to open the symbol and then check and save...