I am going through this tutorial. When I execute the command: "python manage.py sqlmigrate polls 0001" it is ending in below error.
Please help resolve the issue.
Error:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
utility.execute()
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/core/management/__init__.py", line 355, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/core/management/commands/sqlmigrate.py", line 33, in execute
return super(Command, self).execute(*args, **options)
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/core/management/commands/sqlmigrate.py", line 62, in handle
sql_statements = executor.collect_sql(plan)
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/db/migrations/executor.py", line 219, in collect_sql
with self.connection.schema_editor(collect_sql=True, atomic=migration.atomic) as schema_editor:
File "/scratch/njakkula/NJ/py_Oracle/bugdb/triage/lib/python2.7/site-packages/django/db/backends/sqlite3/schema.py", line 25, in __enter__
self._initial_pragma_fk = c.fetchone()[0]
TypeError: 'NoneType' object has no attribute '__getitem__'