I had exact same problem.
So I issued this command:
opt/cloudera/parcels/CDH/lib/hue/tools/app_reg/app_reg.py --install /opt/cloudera/parcels/CDH/lib/hue/apps/impala
Now I when I go to localhost:8888, I get this:
Traceback (most recent call last):
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 1215, in communicate
req.respond()
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 576, in respond
self._respond()
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 588, in _respond
response = self.wsgi_app(self.environ, self.start_response)
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/wsgi.py", line 187, in __call__
self.load_middleware()
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 45, in load_middleware
mw_class = import_by_path(middleware_path)
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/utils/module_loading.py", line 26, in import_by_path
sys.exc_info()[2])
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/utils/module_loading.py", line 21, in import_by_path
module = import_module(module_path)
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/utils/importlib.py", line 40, in import_module
__import__(name)
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/middleware.py", line 45, in <module>
import desktop.views
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/views.py", line 49, in <module>
from desktop.converters import DocumentConverter
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/core/src/desktop/converters.py", line 27, in <module>
from notebook.api import _historify
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/api.py", line 35, in <module>
from notebook.views import upgrade_session_properties
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/views.py", line 38, in <module>
from notebook.management.commands.notebook_setup import Command
File "/opt/cloudera/parcels/CDH-5.11.1-1.cdh5.11.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/management/commands/notebook_setup.py", line 27, in <module>
from useradmin.models import get_default_user_group, install_sample_user
ImproperlyConfigured: Error importing module desktop.middleware: "No module named useradmin.models"
