Read the Docs build information Build id: 13665 Project: deployed-controls-fxe Version: latest Commit: 9117b527c56c92a771292b190ff85739afe70590 Date: 2019-12-12T06:16:26.071391Z State: finished Success: False [rtd-command-info] start-time: 2019-12-12T12:17:39.108000Z, end-time: 2019-12-12T12:18:00.340000Z, duration: 21, exit-code: 0 python3 -mvirtualenv --system-site-packages --no-download /user_builds/deployed-controls-fxe/envs/latest Using base prefix '/usr' New python executable in /user_builds/deployed-controls-fxe/envs/latest/bin/python3 Not overwriting existing python script /user_builds/deployed-controls-fxe/envs/latest/bin/python (you must use /user_builds/deployed-controls-fxe/envs/latest/bin/python3) Installing setuptools, pip, wheel...done. [rtd-command-info] start-time: 2019-12-12T12:18:00.443000Z, end-time: 2019-12-12T12:18:05.565000Z, duration: 5, exit-code: 1 python /user_builds/deployed-controls-fxe/envs/latest/bin/pip install --use-wheel -U --cache-dir /user_builds/deployed-controls-fxe/.cache/pip -I sphinx==1.3.5 Pygments==2.1.3 setuptools==20.1.1 docutils==0.12 mkdocs==0.15.0 mock==1.0.1 pillow==2.6.1 git+https://github.com/rtfd/readthedocs-sphinx-ext.git@0.6-alpha#egg=readthedocs-sphinx-ext sphinx-rtd-theme==0.1.9 alabaster>=0.7,<0.8,!=0.7.5 commonmark==0.5.4 recommonmark==0.1.1 Collecting sphinx==1.3.5 Could not fetch URL https://pypi.python.org/simple/sphinx/: There was a problem confirming the ssl certificate: [Errno 2] No such file or directory - skipping Could not find a version that satisfies the requirement sphinx==1.3.5 (from versions: ) No matching distribution found for sphinx==1.3.5 You are using pip version 9.0.1, however version 19.3.1 is available. You should consider upgrading via the 'pip install --upgrade pip' command.