Database migration failed

[zongxindu]

I just followed the installation steps. when I am running this command:
python manage.py migrate
The program throws an exception：
django.core.exceptions.ImproperlyConfigured: Set the SECRET_KEY environment variable
This is defined in the setting.py file：
SECRET_KEY = env('SECRET_KEY')
then randomly generated a string of text as the SECRET_KEY：
SECRET_KEY='2ap4_#)wk@5)3lsh6idzxwaouy6)*(5z#w(3atk0%a5!+-29j-
but, when I am running the command: python manage.py migrate
The program throws another exception：
django.core.exceptions.ImproperlyConfigured: Set the DATABASE_URL environment variable
I am sorry, I tried to learn the basics of Django, but I didn't know anything about Web development, or database, and after looking at some of the basics of Django, I still didn't know how to Debug this error.

[SanaNazari]

I get the same error. Did you manage to solve this?

[bitmman]

Same error here.

[jamnicki]

• create .env file as follows or set the environment variables:

  annotation/AlpacaTag/app/.env

  SECRET_KEY=<your-key>
  DATABASE_URL=postgres://doccano_admin:doccano_pass@localhost:5432/doccano?sslmode=disable

• set up the database (most propably creators implemented AlpacaTag along with doccano with postgres db)

  https://doccano.github.io/doccano/install_and_upgrade_doccano/#use-postgresql-as-a-database

• run the app with --insecure flag by python manage.py runserver 0.0.0.0:8000 --insecure

  why? - read here