Read the Docs build information Build id: 12220 Project: calibrationreport Version: latest Commit: 07a679b3a21f1ebbfd309f92ca2d8b9c85da1ea9 Date: 2019-09-04T10:52:59.840429Z State: finished Success: False [rtd-command-info] start-time: 2019-09-04T15:53:02.344000Z, end-time: 2019-09-04T15:53:17.783000Z, duration: 15, exit-code: 0 python3 -mvirtualenv --no-site-packages --no-download /user_builds/calibrationreport/envs/latest Using base prefix '/usr' New python executable in /user_builds/calibrationreport/envs/latest/bin/python3 Not overwriting existing python script /user_builds/calibrationreport/envs/latest/bin/python (you must use /user_builds/calibrationreport/envs/latest/bin/python3) Installing setuptools, pip, wheel...done. [rtd-command-info] start-time: 2019-09-04T15:53:17.878000Z, end-time: 2019-09-04T15:53:18.938000Z, duration: 1, exit-code: 1 python /user_builds/calibrationreport/envs/latest/bin/pip install --use-wheel -U --cache-dir /user_builds/calibrationreport/.cache/pip 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 Traceback (most recent call last): File "/user_builds/calibrationreport/envs/latest/bin/pip", line 7, in from pip import main File "/user_builds/calibrationreport/envs/latest/lib/python3.4/site-packages/pip/__init__.py", line 26, in from pip.utils import get_installed_distributions, get_prog File "/user_builds/calibrationreport/envs/latest/lib/python3.4/site-packages/pip/utils/__init__.py", line 23, in from pip.locations import ( File "/user_builds/calibrationreport/envs/latest/lib/python3.4/site-packages/pip/locations.py", line 10, in from distutils.command.install import install, SCHEME_KEYS # noqa File "/usr/lib/python3.4/distutils/command/install.py", line 9, in from distutils.core import Command File "/usr/lib/python3.4/distutils/core.py", line 18, in from distutils.config import PyPIRCCommand File "/usr/lib/python3.4/distutils/config.py", line 7, in from configparser import ConfigParser File "/usr/lib/python3.4/configparser.py", line 121, in from collections.abc import MutableMapping ImportError: No module named 'collections.abc'