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Hello everyone and thanks for contributing to the spread of microelectronics! I'm following the quic...
# caravel
a
Hello everyone and thanks for contributing to the spread of microelectronics! I'm following the quickstart guide for Caravel user project. After typing the hardening command through OpenLane (make user_proj_example) the following error message is displayed in STEP 37:
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[STEP 37]
[INFO]: Running Circuit Validity Checker ERC (log: ../home/tonio/ESPRESSO_IC/openlane/user_proj_example/runs/22_11_30_12_44/logs/signoff/37-erc_screen.log)...
[ERROR]: during executing: "cvc_rv /home/tonio/ESPRESSO_IC/dependencies/pdks/sky130B/libs.tech/openlane/cvc/cvcrc |& tee /dev/null /home/tonio/ESPRESSO_IC/openlane/user_proj_example/runs/22_11_30_12_44/logs/signoff/37-erc_screen.log"
[ERROR]: Exit code: 1
[ERROR]: Last 10 lines:
couldn't execute "cvc_rv": no such file or directory

[INFO]: Saving current set of views in '../home/tonio/ESPRESSO_IC/openlane/user_proj_example/runs/22_11_30_12_44/results/final'...
[INFO]: Generating final set of reports...
[INFO]: Created manufacturability report at '../home/tonio/ESPRESSO_IC/openlane/user_proj_example/runs/22_11_30_12_44/reports/manufacturability.rpt'.
[INFO]: Created metrics report at '../home/tonio/ESPRESSO_IC/openlane/user_proj_example/runs/22_11_30_12_44/reports/metrics.csv'.
[INFO]: Saving runtime environment...
[ERROR]: Flow failed.
Could you please provide support?
v
Which 
MPW_TAG
currently using?
a
How to check it?
Just found a reference in the Makefile. It should be "mpw-8c"
v
@Mitch Bailey can you please check this?
Till get fix/update disable following in 
config.json
"RUN_CVC": 0,
and continue
m
Right. Just disable for now.
a
Got it! Thanks for support
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