Traceback (most recent call last):


 "train.py", line 641, in <module>

train_images(hps)


 "train.py", line 444, in train_images

train_step(batch, batch_idx, epoch, hps, model, opt, train_logger)


 "train.py", line 457, in train_step

opt.step()


 "/opt/conda/lib/python3.6/site-packages/horovod/torch/__init__.py", line 97, in step

return super(self.__class__, self).step(closure)


 "/opt/conda/lib/python3.6/site-packages/torch/optim/adamax.py", line 75, in step

exp_avg.mul_(beta1).add_(1 - beta1, grad)
TypeError: mul_() received an invalid combination of arguments - got (numpy.float32), but expected one of:

Traceback (most recent call last):

 "./manage.py", line 15, in <module>
execute_from_command_line(sys.argv)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
utility.execute()

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/core/management/__init__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/core/management/commands/test.py", line 50, in run_from_argv
super(Command, self).run_from_argv(argv)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/core/management/base.py", line 242, in run_from_argv
self.execute(*args, **options.__dict__)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/core/management/commands/test.py", line 71, in execute
super(Command, self).execute(*args, **options)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/core/management/base.py", line 285, in execute
output = self.handle(*args, **options)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/south/management/commands/test.py", line 8, in handle
super(Command, self).handle(*args, **kwargs)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/core/management/commands/test.py", line 88, in handle
failures = test_runner.run_tests(test_labels)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/test/runner.py", line 144, in run_tests
suite = self.build_suite(test_labels, extra_tests)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/django/test/runner.py", line 63, in build_suite
tests = self.test_loader.loadTestsFromName(label)

 "/usr/local/Cellar/python3/3.3.2/Frameworks/Python.framework/Versions/3.3/lib/python3.3/unittest/loader.py", line 96, in loadTestsFromName
module = __import__('.'.join(parts_copy))

 "/Users/dustin/Sites/lms/tests/integration/test_accounts_api.py", line 4, in <module>
from accounts.serializers import AccountSerializer

 "/Users/dustin/Sites/lms/app/accounts/serializers.py", line 7, in <module>
class AccountSerializer(serializers.ModelSerializer):

 "/Users/dustin/Sites/lms/app/accounts/serializers.py", line 8, in AccountSerializer
admins = UserSerializer(many=True)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/rest_framework/serializers.py", line 162, in __init__
self.fields = self.get_fields()

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/rest_framework/serializers.py", line 198, in get_fields
default_fields = self.get_default_fields()

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/rest_framework/serializers.py", line 645, in get_default_fields
field = self.get_related_field(model_field, related_model, to_many)

 "/Users/dustin/.virtualenvs/lms/lib/python3.3/site-packages/rest_framework/serializers.py", line 733, in get_related_field
'queryset': related_model._default_manager,AttributeError: 'str' object has no attribute '_default_manager'