when running 'tox' or 'tox -e py37'

[gofurmzq]

Get some error: 143, in exec_module exec(co, module.dict) File "/home/gofurmzq/Documents/flask-api-with-jwt/venv/lib/python3.7/site-packages/pytest_flask/plugin.py", line 11, in from flask import json File "/home/gofurmzq/Documents/flask-api-with-jwt/venv/lib/python3.7/site-packages/flask/init.py", line 14, in from jinja2 import escape File "/home/gofurmzq/Documents/flask-api-with-jwt/venv/lib/python3.7/site-packages/jinja2/init.py", line 6, in from markupsafe import escape ModuleNotFoundError: No module named @'markupsafe' ERROR: InvocationError for command /home/gofurmzq/Documents/flask-api-with-jwt/.tox/py37/bin/pytest (exited with code 1) _________________ summary __________________ ERROR: py37: commands failed

Thanks you i hope you can suggest the solved issue @a-luna :sweat_smile: