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[Rob Cresswell <rcresswe@xxxxxxxxx>]

** No longer affects: horizon/kilo

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https://bugs.launchpad.net/bugs/1444421

Title:
  Launch instance fails with nova network

Status in OpenStack Dashboard (Horizon):
  Fix Released

Bug description:
  Current Launch Instance (not angular launch instance)

  git checkout from kilo rc1:

  I have deployed as system with nova network instead of neutron.

  While trying to launch an instance, I'm getting:
  Internal Server Error: /project/instances/launch
  Traceback (most recent call last):
    File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py", line 164, in get_response
      response = response.render()
    File "/usr/lib/python2.7/site-packages/django/template/response.py", line 158, in render
      self.content = self.rendered_content
    File "/usr/lib/python2.7/site-packages/django/template/response.py", line 135, in rendered_content
      content = template.render(context, self._request)
    File "/usr/lib/python2.7/site-packages/django/template/backends/django.py", line 74, in render
      return self.template.render(context)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 209, in render
      return self._render(context)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 201, in _render
      return self.nodelist.render(context)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 903, in render
      bit = self.render_node(node, context)
    File "/usr/lib/python2.7/site-packages/django/template/debug.py", line 79, in render_node
      return node.render(context)
    File "/usr/lib/python2.7/site-packages/django/template/defaulttags.py", line 576, in render
      return self.nodelist.render(context)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 903, in render
      bit = self.render_node(node, context)
    File "/usr/lib/python2.7/site-packages/django/template/debug.py", line 79, in render_node
      return node.render(context)
    File "/usr/lib/python2.7/site-packages/django/template/loader_tags.py", line 56, in render
      result = self.nodelist.render(context)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 903, in render
      bit = self.render_node(node, context)
    File "/usr/lib/python2.7/site-packages/django/template/debug.py", line 79, in render_node
      return node.render(context)
    File "/usr/lib/python2.7/site-packages/django/template/defaulttags.py", line 217, in render
      nodelist.append(node.render(context))
    File "/usr/lib/python2.7/site-packages/django/template/defaulttags.py", line 322, in render
      match = condition.eval(context)
    File "/usr/lib/python2.7/site-packages/django/template/defaulttags.py", line 933, in eval
      return self.value.resolve(context, ignore_failures=True)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 647, in resolve
      obj = self.var.resolve(context)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 787, in resolve
      value = self._resolve_lookup(context)
    File "/usr/lib/python2.7/site-packages/django/template/base.py", line 847, in _resolve_lookup
      current = current()
    File "/home/mrunge/work/horizon/horizon/workflows/base.py", line 439, in has_required_fields
      return any(field.required for field in self.action.fields.values())
    File "/home/mrunge/work/horizon/horizon/workflows/base.py", line 368, in action
      context)
    File "/home/mrunge/work/horizon/openstack_dashboard/dashboards/project/instances/workflows/create_instance.py", line 707, in __init__
      super(SetNetworkAction, self).__init__(request, *args, **kwargs)
    File "/home/mrunge/work/horizon/horizon/workflows/base.py", line 138, in __init__
      self._populate_choices(request, context)
    File "/home/mrunge/work/horizon/horizon/workflows/base.py", line 151, in _populate_choices
      bound_field.choices = meth(request, context)
    File "/home/mrunge/work/horizon/openstack_dashboard/dashboards/project/instances/workflows/create_instance.py", line 721, in populate_network_choices
      return instance_utils.network_field_data(request)
    File "/home/mrunge/work/horizon/openstack_dashboard/dashboards/project/instances/utils.py", line 97, in network_field_data
      if not networks:
  UnboundLocalError: local variable 'networks' referenced before assignment

  Fun fact is, this only occurs, when using admin credentials. with
  user, this doesn't happen.

  The error message shown in horizon is: Error: Invalid service catalog
  service: network

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