问题 I try connect django to Azure SQL and have error KeyError: deferrable when i start migrate command. i can't find resolution for this issue. i use this application: asgiref==3.2.10 Django==3.1 django-mssql-backend==2.8.1 pyodbc==4.0.30 pytz==2020.1 sqlparse==0.3.1 and this is my config in settings.py: DATABASES = { 'default': { 'ENGINE': 'sql_server.pyodbc', 'NAME': 'DBNAME', 'USER': 'DBUSER', 'PASSWORD': 'PASSWORD', 'HOST': 'databasename.database.windows.net', 'PORT': '1433', 'OPTIONS': {