Jonilson, bom dia.
Esse erro foi apresentado no momento que rodei : " pip install -r requirements.txt "
(venv-django-todolist) vagrant@ubuntu-bionic:/vagrant/jenkins-todo-list$ pip install -r requirements.txt
Requirement already satisfied: wheel==0.35.1 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 1)) (0.35.1)
Collecting Django==3.1.1
Downloading Django-3.1.1-py3-none-any.whl (7.8 MB)
|████████████████████████████████| 7.8 MB 3.9 MB/s
Requirement already satisfied: django-bootstrap-form==3.4 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 3)) (3.4)
Requirement already satisfied: django-glrm==1.1.3 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 4)) (1.1.3)
Requirement already satisfied: django-widget-tweaks==1.4.3 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 5)) (1.4.3)
Requirement already satisfied: mysqlclient==1.4.2.post1 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 6)) (1.4.2.post1)
Requirement already satisfied: pytz==2018.9 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 7)) (2018.9)
Requirement already satisfied: uWSGI==2.0.18 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 8)) (2.0.18)
Requirement already satisfied: gunicorn==19.9.0 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 9)) (19.9.0)
Requirement already satisfied: python-decouple==3.1 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 10)) (3.1)
Collecting asgiref~=3.2.10
Downloading asgiref-3.2.10-py3-none-any.whl (19 kB)
Collecting sqlparse>=0.2.2
Downloading sqlparse-0.3.1-py2.py3-none-any.whl (40 kB)
|████████████████████████████████| 40 kB 11.5 MB/s
Installing collected packages: asgiref, sqlparse, Django
Attempting uninstall: Django
Found existing installation: Django 2.1.7
Uninstalling Django-2.1.7:
Successfully uninstalled Django-2.1.7
ERROR: Could not install packages due to an EnvironmentError: [Errno 39] Directory not empty: 'apps'
(venv-django-todolist) vagrant@ubuntu-bionic:/vagrant/jenkins-todo-list$
Porém eu rodei novamente : " pip install -r requirements.txt " , como você disse no vídeo que as vezes acontece algo parecido, mas bastava rodar novamente, aí a saída foi essa:
(venv-django-todolist) vagrant@ubuntu-bionic:/vagrant/jenkins-todo-list$
(venv-django-todolist) vagrant@ubuntu-bionic:/vagrant/jenkins-todo-list$ pip install -r requirements.txt
Requirement already satisfied: wheel==0.35.1 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 1)) (0.35.1)
Requirement already satisfied: Django==3.1.1 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 2)) (3.1.1)
Requirement already satisfied: django-bootstrap-form==3.4 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 3)) (3.4)
Requirement already satisfied: django-glrm==1.1.3 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 4)) (1.1.3)
Requirement already satisfied: django-widget-tweaks==1.4.3 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 5)) (1.4.3)
Requirement already satisfied: mysqlclient==1.4.2.post1 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 6)) (1.4.2.post1)
Requirement already satisfied: pytz==2018.9 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 7)) (2018.9)
Requirement already satisfied: uWSGI==2.0.18 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 8)) (2.0.18)
Requirement already satisfied: gunicorn==19.9.0 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 9)) (19.9.0)
Requirement already satisfied: python-decouple==3.1 in ./venv-django-todolist/lib/python3.6/site-packages (from -r requirements.txt (line 10)) (3.1)
Requirement already satisfied: asgiref~=3.2.10 in ./venv-django-todolist/lib/python3.6/site-packages (from Django==3.1.1->-r requirements.txt (line 2)) (3.2.10)
Requirement already satisfied: sqlparse>=0.2.2 in ./venv-django-todolist/lib/python3.6/site-packages (from Django==3.1.1->-r requirements.txt (line 2)) (0.3.1)
Ou seja, aparentemente tudo ok.
Mas não roda a migração.