Error creating layer from admin console

[Famicoman]

In admin console as a superuser, go to add a layer because one is needed before I create a node. Whether I choose a marker or polygon, when I hit save it gives me a 500 internal server error.

I'm not a big python guy so I have no idea how to go about fixing this. Also, please let me know if there is another way to add layers.

Log from /var/www/nodeshot/log/nodeshot.error.log:

[ERROR 2017-03-28 21:04:22,466] module: base, process: 30476, thread: 140492076672896
Internal Server Error: /admin/layers/layer/add/
Traceback (most recent call last):
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 132, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 618, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/utils/decorators.py", line 110, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/contrib/admin/sites.py", line 233, in inner
    return view(request, *args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/reversion/admin.py", line 172, in add_view
    return super(VersionAdmin, self).add_view(request, form_url, extra_context)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1518, in add_view
    return self.changeform_view(request, None, form_url, extra_context)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/utils/decorators.py", line 34, in _wrapper
    return bound_func(*args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/utils/decorators.py", line 110, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/utils/decorators.py", line 30, in bound_func
    return func.__get__(self, type(self))(*args2, **kwargs2)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/utils/decorators.py", line 145, in inner
    return func(*args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1469, in changeform_view
    self.save_model(request, new_object, form, not add)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/contrib/admin/options.py", line 1080, in save_model
    obj.save()
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/nodeshot/core/layers/models/layer.py", line 76, in save
    super(Layer, self).save(*args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/nodeshot/core/base/models.py", line 77, in save
    super(BaseDate, self).save(*args, **kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/db/models/base.py", line 734, in save
    force_update=force_update, update_fields=update_fields)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/db/models/base.py", line 771, in save_base
    update_fields=update_fields, raw=raw, using=using)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 189, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/nodeshot/community/participation/models/__init__.py", line 168, in create_layer_rating_settings
    create_related_object.delay(LayerParticipationSettings, {'layer': layer})
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/celery/app/task.py", line 412, in delay
    return self.apply_async(args, kwargs)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/celery/app/task.py", line 535, in apply_async
    **options
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/celery/app/base.py", line 737, in send_task
    amqp.send_task_message(P, name, message, **options)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/celery/app/amqp.py", line 558, in send_task_message
    **properties
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/messaging.py", line 169, in publish
    compression, headers)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/messaging.py", line 252, in _prepare
    body) = dumps(body, serializer=serializer)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/serialization.py", line 221, in dumps
    payload = encoder(data)
  File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
    self.gen.throw(type, value, traceback)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/serialization.py", line 54, in _reraise_errors
    reraise(wrapper, wrapper(exc), sys.exc_info()[2])
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/serialization.py", line 50, in _reraise_errors
    yield
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/serialization.py", line 221, in dumps
    payload = encoder(data)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/utils/json.py", line 72, in dumps
    **dict(default_kwargs, **kwargs))
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/simplejson/__init__.py", line 397, in dumps
    **kw).encode(obj)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/simplejson/encoder.py", line 291, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/simplejson/encoder.py", line 373, in iterencode
    return _iterencode(o, 0)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/kombu/utils/json.py", line 62, in default
    return super(JSONEncoder, self).default(o)
  File "/usr/local/lib/virtualenvs/nodeshot/local/lib/python2.7/site-packages/simplejson/encoder.py", line 268, in default
    raise TypeError(repr(o) + " is not JSON serializable")
EncodeError: <class 'nodeshot.community.participation.models.layer_participation_settings.LayerParticipationSettings'> is not JSON serializable

[nemesifier]

Are you adding the layer from the web interface?

[Famicoman]

I'm adding the layer from the admin web interface.

[oxodi]

same error for me, how i fix it?