object has no attribute

[LilTrublMakr]

Hello,

I have noticed when accessing certain pages (namely, a /virtual-machine/## or /custom-fields/## page), I get an exception:
Exception Value: 'CustomField' object has no attribute 'virtual_chassis' or Exception Value: 'VirtualMachine' object has no attribute 'virtual_chassis'

I don't really have any idea when this started since I only work with Netbox in my homelab on and off. The only plugin that I have removed lately is the proxbox module since it is currently not working. I have also tried running all migrations.

I did not have a custom field named "virtual_chassis" so I created it to see if it would fix the error, but I still receive the error even when adding the virtual machine scope and removed it again.

Any guidance to resolve this issue would be greatly appreciated.

thanks

Traceback:

Environment:


Request Method: GET
Request URL: http://redacted/extras/custom-fields/2/

Django Version: 5.2.7
Python Version: 3.12.3
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'django.forms',
 'corsheaders',
 'debug_toolbar',
 'django_filters',
 'django_htmx',
 'django_tables2',
 'django_prometheus',
 'strawberry_django',
 'mptt',
 'rest_framework',
 'social_django',
 'sorl.thumbnail',
 'taggit',
 'timezone_field',
 'core',
 'account',
 'circuits',
 'dcim',
 'ipam',
 'extras',
 'tenancy',
 'users',
 'utilities',
 'virtualization',
 'vpn',
 'wireless',
 'django_rq',
 'drf_spectacular',
 'drf_spectacular_sidecar',
 'netbox_inventory.NetBoxInventoryConfig',
 'netbox_kea.NetBoxKeaConfig',
 'netbox_device_view.NetBoxDeviceViewConfig',
 'netbox_lists.ListsPluginConfig',
 'netbox_toolkit_plugin.ToolkitPluginConfig']
Installed Middleware:
['strawberry_django.middlewares.debug_toolbar.DebugToolbarMiddleware',
 'corsheaders.middleware.CorsMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.locale.LocaleMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware',
 'django_htmx.middleware.HtmxMiddleware',
 'netbox.middleware.RemoteUserMiddleware',
 'netbox.middleware.CoreMiddleware',
 'netbox.middleware.MaintenanceModeMiddleware']


Template error:
In template /opt/netbox/netbox/templates/extras/customfield.html, error at line 160
   'CustomField' object has no attribute 'virtual_chassis'
   150 :           </a>
   151 :         {% endfor %}
   152 :       </ul>
   153 :     </div>
   154 : 
   155 :     {% plugin_right_page object %}
   156 :   </div>
   157 : </div>
   158 : <div class="row">
   159 :   <div class="col col-md-12">
   160 :      {% plugin_full_width_page object %} 
   161 :   </div>
   162 : </div>
   163 : {% endblock %}
   164 : 

Traceback (most recent call last):
  File "/opt/netbox/netbox/netbox/middleware.py", line 128, in __call__
    username = request.META[self.header]
               ^^^^^^^^^^^^^^^^^^^^^^^^^

During handling of the above exception ('HTTP_REMOTE_USER'), another exception occurred:
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/views/generic/base.py", line 105, in view
    return self.dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/netbox/netbox/views/generic/base.py", line 26, in dispatch
    return super().dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/netbox/utilities/views.py", line 144, in dispatch
    return super().dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/netbox/utilities/views.py", line 45, in dispatch
    return super().dispatch(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/views/generic/base.py", line 144, in dispatch
    return handler(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/netbox/netbox/views/generic/object_views.py", line 80, in get
    return render(request, self.get_template_name(), {
           
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/shortcuts.py", line 25, in render
    content = loader.render_to_string(template_name, context, request, using=using)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader.py", line 62, in render_to_string
    return template.render(context, request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/backends/django.py", line 107, in render
    return self.template.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 171, in render
    return self._render(context)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/test/utils.py", line 114, in instrumented_test_render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader_tags.py", line 159, in render
    return compiled_parent._render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/test/utils.py", line 114, in instrumented_test_render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader_tags.py", line 159, in render
    return compiled_parent._render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/test/utils.py", line 114, in instrumented_test_render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader_tags.py", line 159, in render
    return compiled_parent._render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/test/utils.py", line 114, in instrumented_test_render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader_tags.py", line 159, in render
    return compiled_parent._render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/test/utils.py", line 114, in instrumented_test_render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader_tags.py", line 65, in render
    result = block.nodelist.render(context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader_tags.py", line 65, in render
    result = block.nodelist.render(context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/loader_tags.py", line 65, in render
    result = block.nodelist.render(context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 1016, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/base.py", line 977, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/django/template/library.py", line 321, in render
    output = self.func(*resolved_args, **resolved_kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/netbox/utilities/templatetags/plugins.py", line 109, in plugin_full_width_page
    return _get_registered_content(obj, 'full_width_page', context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/netbox/utilities/templatetags/plugins.py", line 42, in _get_registered_content
    content = getattr(instance, method)()
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/netbox_device_view/template_content.py", line 36, in full_width_page
    return self.page()
           ^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/netbox_device_view/template_content.py", line 12, in page
    dv, modules, ports_chassis = prepare(obj)
                                 ^^^^^^^^^^^^
  File "/opt/netbox/venv/lib/python3.12/site-packages/netbox_device_view/utils.py", line 53, in prepare
    if obj.virtual_chassis is None:
       ^^^^^^^^^^^^^^^^^^^

Exception Type: AttributeError at /extras/custom-fields/2/
Exception Value: 'CustomField' object has no attribute 'virtual_chassis'

[LilTrublMakr]

Turns out that this is a plugin issue and not a Netbox issue: peterbaumert/netbox-device-view#44