Cannot install -r /home/zuul/src/opendev.org/openstack/nova/requirements.txt because these package versions have conflicting dependencies.

[Lee Yarwood]

https://zuul.opendev.org/t/openstack/build/7590138a20b04fed99e931e1cc698a75

ERROR: Cannot install -r /home/zuul/src/opendev.org/openstack/nova/requirements.txt (line 33) because these package versions have conflicting dependencies.

The conflict is caused by:
    websockify 0.9.0 depends on numpy
    The user requested (constraint) numpy===1.19.5

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/user_guide/#fixing-conflicting-dependencies

[Lee Yarwood (lyarwood)]

Another weird example of this where we clearly meet the requirement but pip fails anyway:

https://zuul.opendev.org/t/openstack/build/cbf9affc449848f9910eaab857c5df74/log/job-output.txt#29072

2021-06-14 17:43:15.964014 | controller | ERROR: Cannot install cinder-tempest-plugin==1.4.1.dev16 because these package versions have conflicting dependencies.
2021-06-14 17:43:15.964301 | controller |
2021-06-14 17:43:15.964340 | controller | The conflict is caused by:
2021-06-14 17:43:15.964414 | controller | cinder-tempest-plugin 1.4.1.dev16 depends on tempest>=17.1.0
2021-06-14 17:43:15.964457 | controller | The user requested (constraint) tempest===27.0.0
2021-06-14 17:43:15.964493 | controller |

[Balazs Gibizer (balazs-gibizer)]

Another variant:

2021-06-15 16:15:57.066895 | controller | ERROR: Cannot install paramiko>=2.7.0 because these package versions have conflicting dependencies.
2021-06-15 16:15:57.066917 | controller |
2021-06-15 16:15:57.066932 | controller | The conflict is caused by:
2021-06-15 16:15:57.066943 | controller | The user requested paramiko>=2.7.0
2021-06-15 16:15:57.066954 | controller | The user requested (constraint) paramiko===2.7.2

https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_9c5/796269/3/check/tempest-ipv6-only/9c52a7c/job-output.txt

[Balazs Gibizer (balazs-gibizer)]

Elod noticed that all the hits are from the limestone node provider.

[Balazs Gibizer (balazs-gibizer)]

Another hit with another package:

2021-06-16 04:58:20.922598 | ubuntu-focal | ERROR: Cannot install Routes>=2.3.1 because these package versions have conflicting dependencies.
2021-06-16 04:58:20.922610 | ubuntu-focal |
2021-06-16 04:58:20.922622 | ubuntu-focal | The conflict is caused by:
2021-06-16 04:58:20.922646 | ubuntu-focal | The user requested Routes>=2.3.1
2021-06-16 04:58:20.922662 | ubuntu-focal | The user requested (constraint) routes===2.5.1

https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_5a7/796269/3/check/nova-tox-functional-py38/5a7ba9c/job-output.txt

again from limestone

[Balazs Gibizer (balazs-gibizer)]

Another hit. Still limestone.

2021-06-16 05:49:45.388723 | ubuntu-bionic | ERROR: Cannot install GitPython because these package versions have conflicting dependencies.
2021-06-16 05:49:45.388737 | ubuntu-bionic |
2021-06-16 05:49:45.388749 | ubuntu-bionic | The conflict is caused by:
2021-06-16 05:49:45.388762 | ubuntu-bionic | gitdb 4.0.7 depends on smmap<5 and >=3.0.1
2021-06-16 05:49:45.388775 | ubuntu-bionic | The user requested (constraint) smmap===4.0.0

https://1b38eb07519f5fe2ed36-da9f1bb46fd216e97fa5e10d4af58222.ssl.cf5.rackcdn.com/796255/2/check/openstack-tox-py36/3c59c9d/job-output.txt

[Balazs Gibizer (balazs-gibizer)]

limestone is now disable due to mirror issues https://review.opendev.org/c/openstack/project-config/+/796590

[Lee Yarwood (lyarwood)]

Marking as invalid as it was fixed elsewhere within our CI infra and not within Nova.