# Pastebin L39tjmBQ
root@aio1-swift-proxy-container-301e4e8f:/# /openstack/venvs/swift-master/bin/swift-proxy-server /etc/swift/proxy-server/proxy-server.conf
Traceback (most recent call last):
  File "/openstack/venvs/swift-master/bin/swift-proxy-server", line 19, in <module>
    from swift.common.wsgi import run_wsgi
  File "/openstack/venvs/swift-master/lib/python2.7/site-packages/swift/common/wsgi.py", line 41, in <module>
    from swift.common.storage_policy import BindPortsCache
  File "/openstack/venvs/swift-master/lib/python2.7/site-packages/swift/common/storage_policy.py", line 27, in <module>
    from pyeclib.ec_iface import ECDriver, ECDriverError, VALID_EC_TYPES
  File "/openstack/venvs/swift-master/lib/python2.7/site-packages/pyeclib/ec_iface.py", line 29, in <module>
    from pyeclib_c import get_liberasurecode_version
ImportError: /openstack/venvs/swift-master/lib/python2.7/site-packages/pyeclib_c.so: undefined symbol: liberasurecode_backend_available