# Error while running the command
**URL:** https://community.blockcerts.org/t/error-while-running-the-command/2373
**Category:** Support
**Created:** [February 28, 2020, 11:10am UTC](https://community.blockcerts.org/t/error-while-running-the-command/2373 "2020-02-28T11:10:13Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@sanil](https://community.blockcerts.org/u/sanil)
#### Post date: [February 28, 2020, 11:10am UTC](https://community.blockcerts.org/t/error-while-running-the-command/2373/1 "2020-02-28T11:10:13Z")
**python run.py -c conf\_local.ini**
2020-02-28 15:53:57,718 - cert\_viewer - INFO - Configured a file system certificate store with path=cert\_data
Traceback (most recent call last):
File “run.py”, line 16, in
main()
File “run.py”, line 10, in main
configure\_app(conf)
File “/home/dbatu/cert-viewer/cert\_viewer/ **init**.py”, line 55, in configure\_app
from cert\_viewer import views
File “/home/dbatu/cert-viewer/cert\_viewer/views/ **init**.py”, line 12, in
from cert\_viewer import verifier\_bridge
File “/home/dbatu/cert-viewer/cert\_viewer/verifier\_bridge.py”, line 1, in
from cert\_verifier import verifier
ModuleNotFoundError: No module named ‘cert\_verifier’
How to tackle this issue.
---
### Author:  [@sanil](https://community.blockcerts.org/u/sanil)
#### Post date: [February 29, 2020, 6:14am UTC](https://community.blockcerts.org/t/error-while-running-the-command/2373/2 "2020-02-29T06:14:42Z")
**Error RESOLVED…!!!**