Open Stack

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Hi,

in case you wonder why your neutron checkout fails recently with
'DuplicateOptError: duplicate option: fake_rabbit' error, this is
because neutron migrated to oslo.messaging recently, and old RPC layer
was removed from the tree. The problem is that while .py files were
removed, .pyc files, being untracked by git, were left on the disk. So
now you import both RPC implementations at the same time, and the
error shows up.

To fix the issue, do the following in your local checkout:

$ rm -r neutron/openstack/common/notifier
$ rm -r neutron/openstack/common/rpc

This should fix the issue.

Cheers,
/Ihar
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