Does not run no module named error

[himat]

I successfully ran make server.install

And then I tried to run make server.start, but I got this error

❯ make server.start
docker-compose up server
Starting backend_dbdata_1 ... done
Starting backend_db_1     ... done
Starting backend_server_1 ... done
Attaching to backend_server_1
server_1      | Traceback (most recent call last):
server_1      |   File "src/server.py", line 1, in <module>
server_1      |     from flasgger import Swagger
server_1      | ModuleNotFoundError: No module named 'flasgger'
backend_server_1 exited with code 1

When I had ran make server.install, this was the last part of the long output

<previous output>
Successfully installed Flask-1.0.3 Flask-Migrate-2.5.2 Flask-RESTful-0.3.7 Flask-SQLAlchemy-2.4.0 Flask-Script-2
.0.6 Jinja2-2.10.1 Mako-1.2.0 MarkupSafe-2.1.1 PyYAML-6.0 SQLAlchemy-1.3.4 Werkzeug-0.15.4 alembic-1.0.10 aniso8
601-9.0.1 appdirs-1.4.4 atomicwrites-1.4.0 attrs-21.4.0 black-19.3b0 certifi-2022.6.15 chardet-3.0.4 click-8.1.3
 colorclass-2.2.2 coverage-6.4.1 docopt-0.6.2 dparse-0.5.1 entrypoints-0.3 flake8-3.7.7 flasgger-0.9.2 idna-2.8
importlib-metadata-4.11.4 importlib-resources-5.8.0 isort-4.3.20 itsdangerous-1.1.0 jsonschema-4.6.0 mccabe-0.6.
1 mistune-2.0.2 more-itertools-8.13.0 packaging-21.3 pip-upgrader-1.4.12 pluggy-0.13.1 psycopg2-2.8.2 py-1.11.0
pycodestyle-2.5.0 pyflakes-2.1.1 pyparsing-3.0.9 pyrsistent-0.18.1 pytest-4.6.2 pytest-cov-2.7.1 pytest-sugar-0.
9.2 python-dateutil-2.8.2 python-editor-1.0.4 pytz-2019.1 requests-2.22.0 safety-1.8.5 setproctitle-1.1.10 six-1
.12.0 termcolor-1.1.0 terminaltables-3.1.10 toml-0.10.2 typing-extensions-4.2.0 urllib3-1.25.11 wcwidth-0.2.5 zi
pp-3.8.0
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the syst
em package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
WARNING: You are using pip version 22.0.4; however, version 22.1.2 is available.
You should consider upgrading via the '/usr/local/bin/python -m pip install --upgrade pip' command.