Traceback (most recent call last):
File "/usr/lib/tethys/src/manage.py", line 20, in <module>
execute_from_command_line(sys.argv)
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
utility.execute()
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/core/management/__init__.py", line 345, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/core/management/base.py", line 348, in run_from_argv
self.execute(*args, **cmd_options)
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/core/management/base.py", line 399, in execute
output = self.handle(*args, **options)
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 89, in handle
executor = MigrationExecutor(connection, self.migration_progress_callback)
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/db/migrations/executor.py", line 20, in __init__
self.loader = MigrationLoader(self.connection)
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/db/migrations/loader.py", line 49, in __init__
self.build_graph()
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/db/migrations/loader.py", line 293, in build_graph
_reraise_missing_dependency(migration, parent, e)
File "/opt/miniconda/envs/tethys/lib/python2.7/site-packages/django/db/migrations/loader.py", line 276, in _reraise_missing_dependency
raise exc
django.db.migrations.exceptions.NodeNotFoundError: Migration social_django.0004_auto_20160423_0400 dependencies reference nonexistent parent node (u'social_django', u'0003_alter_email_max_length')