horizon unstable on development environment

[Lin Hua Cheng]

I keep on getting these two errors whenever I am testing a patch:

1. Error

v.sh ./manage.py runserver 0.0.0.0:8030
Traceback (most recent call last):
  File "./manage.py", line 23, in <module>
    execute_from_command_line(sys.argv)
  File "/home/lin-hua-cheng/Documents/workspace/horizon/.venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
    utility.execute()
  File "/home/lin-hua-cheng/Documents/workspace/horizon/.venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 345, in execute
    settings.INSTALLED_APPS
  File "/home/lin-hua-cheng/Documents/workspace/horizon/.venv/local/lib/python2.7/site-packages/django/conf/__init__.py", line 46, in __getattr__
    self._setup(name)
  File "/home/lin-hua-cheng/Documents/workspace/horizon/.venv/local/lib/python2.7/site-packages/django/conf/__init__.py", line 42, in _setup
    self._wrapped = Settings(settings_module)
  File "/home/lin-hua-cheng/Documents/workspace/horizon/.venv/local/lib/python2.7/site-packages/django/conf/__init__.py", line 98, in __init__
    % (self.SETTINGS_MODULE, e)
ImportError: Could not import settings 'openstack_dashboard.settings' (Is it on sys.path? Is there an import error in the settings file?): No module named angular_gettext

2. Error 2

UncompressableFileError at /auth/login/

'dashboard/project/project.scss' could not be found in the COMPRESS_ROOT '/home/lin-hua-cheng/Documents/workspace/horizon/static' or with staticfiles.

To workaround the issue, I have to keep rebuilding venv

Steps to reproduce:
1. Pull a patch from gerrit for testing, run the server
2. this causes an error, rebuild venv, this works fine
3. Switch back to master, run the server
4. another error will be encountered

[Lin Hua Cheng (lin-hua-cheng)]

the patch just have to be rebased

[Frank (dyc-at-it)]

I used following command in Ubuntu14 and solved this problem:
sudo pip install XStatic-Angular-Gettext

[Andy Yan (yanchao3)]

Rebuilding the .venv environment can solve the problem for me.