hue: AttributeError: 'Config' object has no attribute 'get' with HUE 3.9 on CentOS 7.1

After installing HUE on CentOS 7.1 I get the following error when I try to connect (HUE can’t event load the login page). I’m using HUE 3.9. Here is the whole trace:

Traceback (most recent call last):
  File "/usr/local/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 1196, in communicate
    req.respond()
  File "/usr/local/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 568, in respond
    self._respond()
  File "/usr/local/hue/desktop/core/src/desktop/lib/wsgiserver.py", line 580, in _respond
    response = self.wsgi_app(self.environ, self.start_response)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/wsgi.py", line 206, in __call__
    response = self.get_response(request)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 194, in get_response
    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/handlers/base.py", line 236, in handle_uncaught_exception
    return callback(request, **param_dict)
  File "/usr/local/hue/desktop/core/src/desktop/views.py", line 312, in serve_500_error
    return render("500.mako", request, {'traceback': traceback.extract_tb(exc_info[2])})
  File "/usr/local/hue/desktop/core/src/desktop/lib/django_util.py", line 227, in render
    **kwargs)
  File "/usr/local/hue/desktop/core/src/desktop/lib/django_util.py", line 148, in _render_to_response
    return django_mako.render_to_response(template, *args, **kwargs)
  File "/usr/local/hue/desktop/core/src/desktop/lib/django_mako.py", line 125, in render_to_response
    return HttpResponse(render_to_string(template_name, data_dictionary), **kwargs)
  File "/usr/local/hue/desktop/core/src/desktop/lib/django_mako.py", line 114, in render_to_string_normal
    result = template.render(**data_dict)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/template.py", line 443, in render
    return runtime._render(self, self.callable_, args, data)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/runtime.py", line 786, in _render
    **_kwargs_for_callable(callable_, data))
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/runtime.py", line 818, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/runtime.py", line 844, in _exec_template
    callable_(context, *args, **kwargs)
  File "/tmp/tmpoA084p/desktop/500.mako.py", line 39, in render_body
    __M_writer(unicode( commonheader(_('Error'), "", user) ))
  File "/usr/local/hue/desktop/core/src/desktop/views.py", line 384, in commonheader
    'is_ldap_setup': 'desktop.auth.backend.LdapBackend' in desktop.conf.AUTH.BACKEND.get()
  File "/usr/local/hue/desktop/core/src/desktop/lib/django_mako.py", line 114, in render_to_string_normal
    result = template.render(**data_dict)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/template.py", line 443, in render
    return runtime._render(self, self.callable_, args, data)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/runtime.py", line 786, in _render
    **_kwargs_for_callable(callable_, data))
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/runtime.py", line 818, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Mako-0.8.1-py2.7.egg/mako/runtime.py", line 844, in _exec_template
    callable_(context, *args, **kwargs)
  File "/tmp/tmpoA084p/desktop/common_header.mako.py", line 159, in render_body
    __M_writer(escape(unicode( url('desktop.views.unsupported') )))
  File "/usr/local/hue/desktop/core/src/desktop/lib/django_mako.py", line 131, in url
    return reverse(view_name, args=args, kwargs=view_args)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/urlresolvers.py", line 536, in reverse
    return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs))
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/urlresolvers.py", line 403, in _reverse_with_prefix
    self._populate()
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/urlresolvers.py", line 290, in _populate
    for name in pattern.reverse_dict:
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/urlresolvers.py", line 315, in reverse_dict
    self._populate()
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/urlresolvers.py", line 303, in _populate
    lookups.appendlist(pattern.callback, (bits, p_pattern, pattern.default_args))
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/urlresolvers.py", line 230, in callback
    self._callback = get_callable(self._callback_str)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/utils/functional.py", line 32, in wrapper
    result = func(*args)
  File "/usr/local/hue/build/env/lib/python2.7/site-packages/Django-1.6.10-py2.7.egg/django/core/urlresolvers.py", line 97, in get_callable
    mod = import_module(mod_name)
  File "/usr/local/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 "/usr/local/hue/apps/jobsub/src/jobsub/views.py", line 43, in <module>
    from oozie.forms import design_form_by_type
  File "/usr/local/hue/apps/oozie/src/oozie/forms.py", line 335, in <module>
    class CoordinatorForm(forms.ModelForm):
  File "/usr/local/hue/apps/oozie/src/oozie/forms.py", line 343, in CoordinatorForm
    class Meta:
  File "/usr/local/hue/apps/oozie/src/oozie/forms.py", line 346, in Meta
    if ENABLE_CRON_SCHEDULING.get():
AttributeError: 'Config' object has no attribute 'get'

Thanks for the help!