server: django admin sensortype search

[pat1]

http://localhost:8888/admin/stations/sensortype/?q=ith

Environment:

Request Method: GET
Request URL: http://localhost:8888/admin/stations/sensortype/?q=ith

Django Version: 2.2.17
Python Version: 3.8.7
Installed Applications:
['registration',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.admin',
 'django.contrib.staticfiles',
 'rmap.doc',
 'rmap',
 'rmap.stations',
 'rmap.network',
 'django_hosts',
 'corsheaders',
 'leaflet',
 'djgeojson',
 'geoimage',
 'insertdata',
 'imagekit',
 'showdata',
 'amatyr',
 'borinud',
 'http2mqtt',
 'cookielaw',
 'graphite-dballe',
 'graphite-dballe.metrics',
 'graphite-dballe.render',
 'graphite-dballe.browser',
 'graphite-dballe.composer',
 'graphite-dballe.account',
 'graphite-dballe.dashboard',
 'graphite-dballe.whitelist',
 'graphite-dballe.events',
 'graphite-dballe.url_shortener',
 'tagging',
 'django_extensions',
 'rainbo',
 'borinud_sos',
 'contacts',
 'firmware_updater']
Installed Middleware:
['django_hosts.middleware.HostsRequestMiddleware',
 'corsheaders.middleware.CorsMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.middleware.cache.UpdateCacheMiddleware',
 'django.middleware.locale.LocaleMiddleware',
 'django.middleware.common.CommonMiddleware',
 'rmap.stations.middleware.ProfileMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.cache.FetchFromCacheMiddleware',
 'django_hosts.middleware.HostsResponseMiddleware']

Traceback:

File "/usr/lib/python3.8/site-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)

File "/usr/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
  115.                 response = self.process_exception_by_middleware(e, request)

File "/usr/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/usr/lib/python3.8/site-packages/django/contrib/admin/options.py" in wrapper
  606.                 return self.admin_site.admin_view(view)(*args, **kwargs)

File "/usr/lib/python3.8/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/usr/lib/python3.8/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  44.         response = view_func(request, *args, **kwargs)

File "/usr/lib/python3.8/site-packages/django/contrib/admin/sites.py" in inner
  223.             return view(request, *args, **kwargs)

File "/usr/lib/python3.8/site-packages/django/utils/decorators.py" in _wrapper
  45.         return bound_method(*args, **kwargs)

File "/usr/lib/python3.8/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/usr/lib/python3.8/site-packages/django/contrib/admin/options.py" in changelist_view
  1685.             cl = self.get_changelist_instance(request)

File "/usr/lib/python3.8/site-packages/django/contrib/admin/options.py" in get_changelist_instance
  731.         return ChangeList(

File "/usr/lib/python3.8/site-packages/django/contrib/admin/views/main.py" in __init__
  81.         self.queryset = self.get_queryset(request)

File "/usr/lib/python3.8/site-packages/django/contrib/admin/views/main.py" in get_queryset
  439.         qs, search_use_distinct = self.model_admin.get_search_results(request, qs, self.query)

File "/usr/lib/python3.8/site-packages/django/contrib/admin/options.py" in get_search_results
  1023.                 queryset = queryset.filter(reduce(operator.or_, or_queries))

File "/usr/lib/python3.8/site-packages/django/db/models/query.py" in filter
  892.         return self._filter_or_exclude(False, *args, **kwargs)

File "/usr/lib/python3.8/site-packages/django/db/models/query.py" in _filter_or_exclude
  910.             clone.query.add_q(Q(*args, **kwargs))

File "/usr/lib/python3.8/site-packages/django/db/models/sql/query.py" in add_q
  1290.         clause, _ = self._add_q(q_object, self.used_aliases)

File "/usr/lib/python3.8/site-packages/django/db/models/sql/query.py" in _add_q
  1310.                 child_clause, needed_inner = self._add_q(

File "/usr/lib/python3.8/site-packages/django/db/models/sql/query.py" in _add_q
  1315.                 child_clause, needed_inner = self.build_filter(

File "/usr/lib/python3.8/site-packages/django/db/models/sql/query.py" in build_filter
  1251.         condition = self.build_lookup(lookups, col, value)

File "/usr/lib/python3.8/site-packages/django/db/models/sql/query.py" in build_lookup
  1107.                 raise FieldError('Related Field got invalid lookup: {}'.format(lookup_name))

Exception Type: FieldError at /admin/stations/sensortype/
Exception Value: Related Field got invalid lookup: icontains

[pat1]

solved