Open Stack

I am using the command  ./run_tests.sh -V to run the glance Unittests on both my RHEL and Ubuntu.

And got the same error:
ERROR: glance.tests.unit.test_wsgi.TestHelpers.test_headers_are_unicode
----------------------------------------------------------------------
_StringException: Traceback (most recent call last):
  File "/home/MyWorks/OpenStack/glance/glance/tests/utils.py", line 60, in setUp
    config.parse_args(args=[])
  File "/home/MyWorks/OpenStack/glance/glance/common/config.py", line 77, in parse_args
    version=version.cached_version_string(),
  File "/home/MyWorks/OpenStack/glance/glance/openstack/common/version.py", line 65, in cached_version_string
    self.version_string())
  File "/home/MyWorks/OpenStack/glance/glance/openstack/common/version.py", line 48, in version_string
    self.version = self._get_version_from_pkg_resources()
  File "/home/MyWorks/OpenStack/glance/glance/openstack/common/version.py", line 40, in _get_version_from_pkg_resources
    provider = pkg_resources.get_provider(requirement)
  File "/home/MyWorks/OpenStack/glance/.venv/lib/python2.6/site-packages/pkg_resources.py", line 215, in get_provider
    return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
  File "/home/MyWorks/OpenStack/glance/.venv/lib/python2.6/site-packages/pkg_resources.py", line 696, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/home/MyWorks/OpenStack/glance/.venv/lib/python2.6/site-packages/pkg_resources.py", line 594, in resolve
    raise DistributionNotFound(req)
DistributionNotFound: glance


Anybody know what's wrong with this?
 		 	   		  
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