Hello Everyone, This LVS error is regarding picorv32 core with a custom inverter cell. Attaching all the necessary files. Any help is appreciated. Thanks in advance.

In your lvs.log, you have

(no matching element)                      |sky130_vsdinv (63)
Number of devices: 10220 **Mismatch**      |Number of devices: 10283 **Mismatch**

which indicates that the

sky130_vsdinv

devices are not being extracted. The LVS that you are running is LEF based not gds based. Do you have a lef representation of

sky130_vsdinv

included?

I have only included the lef representation of sky130_vsdinv. gds file is not included. should i include the gds file of sky130_vsdinv to avoid these errors?

Looks like this is lef only extraction - not gds. Can you open the lef view of picorv32 in magic and check for

vsdinv

?