Hi, I was made aware today that new installations of ARA were not working or failing to generate reports in a variety of gate jobs with a stack trace that ends with: AttributeError: 'Blueprint' object has no attribute 'json_encoder' The root cause was identified to be a new release of Flask, 0.12.3, which shipped broken packages to PyPi [1]. This should be fixed momentarily once upstream ships a fixed 0.12.4 package. In the meantime, we're going to merge a requirements.txt update to blacklist 0.12.3 but it won't be effective until we cut a new release of ARA which we hope to be able to do sometime next week. I'll take the opportunity to remind users of ARA that we're transitioning away from statically generated reports [3] and you should do that too if you haven't already. [1]: https://github.com/pallets/flask/issues/2728 [2]: https://github.com/openstack/requirements/blob/a5537a6f4b9cc477067949e1f9136415ac216f21/upper-constraints.txt# L480 [3]: http://lists.openstack.org/pipermail/openstack-dev/2018-March/128902.html David Moreau Simard Senior Software Engineer | OpenStack RDO dmsimard = [irc, github, twitter]