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I need to install horizon package of openstack cloud software on Ubuntu 16.04.1 LTS on Virtualbox to be able to run Chipster. I have followed the protocols provided by docs.openstack website:

http://docs.openstack.org/developer/horizon/quickstart.html

And everything works fine up until the section:

tox -e runserver

which returns the error:

tox.ConfigError: ConfigError: substitution key 'posargs' not found

The same error occurs just typing tox command.As I searched on the net, this error belong to the version 1.7.0 of Tox and was solved in later versions, The version installed by 

sudo apt-get install tox

is 2.3.1-4 and the corrections which were supposed to solve this issue in version 1.7.0 provided here:

https://bitbucket.org/hpk42/tox/pull-requests/85/fix-command-expansion-and-parsing/diff

seems to be already added to the 'tests/test_config.py' and 'tox/_config.py'. I am completely out of ideas. I was wondering if anyone have had the same problem and how it can be solved?

Masih
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1 Answers1

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I have been reporting this error since I installed tox==3.7.0. You can use

pip show tox

to view your own tox version

It would be nice to reduce the version to 3.6.0.

pip install tox==3.6.0

reboot

Marc Vanhoomissen
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doubando
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