python - Addition to INSTALLED_APPS creating problems -

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i've done: pip install django-oauth-toolkit python-social-auth, when add following installed_apps, , doing python manage.py makemigrations

installed_apps = ( ... 'social.apps.django_app.default', 'oauth2_provider', )

its showing me following errors: 

traceback (most recent call last):    file "manage.py", line 10, in <module>      execute_from_command_line(sys.argv)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 385, in execute_from_command_line      utility.execute()    file "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 377, in execute      self.fetch_command(subcommand).run_from_argv(self.argv)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 288, in run_from_argv      self.execute(*args, **options.__dict__)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 338, in execute      output = self.handle(*args, **options)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 533, in handle      return self.handle_noargs(**options)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/syncdb.py", line 27, in handle_noargs      call_command("migrate", **options)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 115, in call_command      return klass.execute(*args, **defaults)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 338, in execute      output = self.handle(*args, **options)    file "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/migrate.py", line 63, in handle      executor = migrationexecutor(connection, self.migration_progress_callback)    file "/usr/local/lib/python2.7/dist-packages/django/db/migrations/executor.py", line 17, in __init__      self.loader = migrationloader(self.connection)    file "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 48, in __init__      self.build_graph()    file "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 173, in build_graph      self.load_disk()    file "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 103, in load_disk      migration_module = import_module("%s.%s" % (module_name, migration_name))    file "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module      __import__(name)    file "/home/apurva/.virtualenvs/auth2/local/lib/python2.7/site-packages/oauth2_provider/migrations/0002_08_updates.py", line 11, in <module>      class migration(migrations.migration):    file "/home/apurva/.virtualenvs/auth2/local/lib/python2.7/site-packages/oauth2_provider/migrations/0002_08_updates.py", line 28, in migration      preserve_default=true,  typeerror: __init__() got unexpected keyword argument 'preserve_default'

how can fix it?

my entire settings.py file: 

"""  django settings beerstash project.    more information on file, see  https://docs.djangoproject.com/en/1.7/topics/settings/    full list of settings , values, see  https://docs.djangoproject.com/en/1.7/ref/settings/  """    # build paths inside project this: os.path.join(base_dir, ...)  import os  base_dir = os.path.dirname(os.path.dirname(__file__))      # quick-start development settings - unsuitable production  # see https://docs.djangoproject.com/en/1.7/howto/deployment/checklist/    # security warning: keep secret key used in production secret!  secret_key = '^7syi&)&mp36m5exn9azhc*l(lp0n!pbwseaup)-tm!zdj*dwe'    # security warning: don't run debug turned on in production!  debug = true    template_debug = true    allowed_hosts = []      # application definition    installed_apps = (      'django.contrib.admin',      'django.contrib.auth',      'django.contrib.contenttypes',      'django.contrib.sessions',      'django.contrib.messages',      'django.contrib.staticfiles',      'rest_framework',      'beers',      'social.apps.django_app.default',      'oauth2_provider',  )  #new additions  authentication_backends = (      'social.backends.facebook.facebookoauth2',      'django.contrib.auth.backends.modelbackend',  )    rest_framework = {      'default_authentication_classes': (          'oauth2_provider.ext.rest_framework.oauth2authentication',      )  }    oauth2_provider = {      # list of available scopes      'scopes': {'read': 'read scope', 'write': 'write scope'}  }    middleware_classes = (      'django.contrib.sessions.middleware.sessionmiddleware',      'django.middleware.common.commonmiddleware',      'django.middleware.csrf.csrfviewmiddleware',      'django.contrib.auth.middleware.authenticationmiddleware',      'django.contrib.auth.middleware.sessionauthenticationmiddleware',      'django.contrib.messages.middleware.messagemiddleware',      'django.middleware.clickjacking.xframeoptionsmiddleware',  )    root_urlconf = 'beerstash.urls'    wsgi_application = 'beerstash.wsgi.application'      # database  # https://docs.djangoproject.com/en/1.7/ref/settings/#databases    databases = {      'default': {          'engine': 'django.db.backends.sqlite3',          'name': os.path.join(base_dir, 'db.sqlite3'),      }  }    # internationalization  # https://docs.djangoproject.com/en/1.7/topics/i18n/    language_code = 'en-us'    time_zone = 'utc'    use_i18n = true    use_l10n = true    use_tz = true      # static files (css, javascript, images)  # https://docs.djangoproject.com/en/1.7/howto/static-files/    static_url = '/static/'


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