Given am having same issue as here: ( metadata-generation-failed ) https://github.com/h2oai/datatable/issues/3431 So, as advised in the bug report above, I tried to install using wheel whl file from the stated repo: https://datatable.readthedocs.io/en/latest/start/install.html#install-latest-dev-version But the error from the repo is; "Artifacts older than 1 month are automatically deleted. For more details see Artifacts retention policy." I don't see any 'green' wheel versions under a month old (actually I don't see any versions under a month, even red/failed ones). So impossible for me to install then? Please let me know if I am doing something wrong.