Hello, I recently updated my ubuntu from 14.04 to 16.04. I tried running firedrake and it failed. I also tried updating firedrake and it failed, see below. Do I need to install it from scratch or should it be possible to update it with a new OS? Cheers, Francis Installing pip dependencies for COFFEE /home/fpoulin/software/firedrake/bin/pip install -r COFFEE/requirements.txt Traceback (most recent call last): File "/home/fpoulin/software/firedrake/bin/pip", line 7, in <module> from pip import main File "/home/fpoulin/software/firedrake/local/lib/python2.7/site-packages/pip/__init__.py", line 14, in <module> from pip.utils import get_installed_distributions, get_prog File "/home/fpoulin/software/firedrake/local/lib/python2.7/site-packages/pip/utils/__init__.py", line 27, in <module> from pip._vendor import pkg_resources File "/home/fpoulin/software/firedrake/local/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.py", line 36, in <module> import plistlib File "/usr/lib/python2.7/plistlib.py", line 62, in <module> import datetime ImportError: No module named datetime Traceback (most recent call last): File "../bin/firedrake-update", line 974, in <module> pip_requirements(p) File "../bin/firedrake-update", line 377, in pip_requirements run_pip_install(["-r", "%s/requirements.txt" % package]) File "../bin/firedrake-update", line 364, in run_pip_install check_call(pipinstall + pipargs) File "../bin/firedrake-update", line 211, in check_call subprocess.check_call(arguments, env=env) File "/usr/lib/python2.7/subprocess.py", line 541, in check_call raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['/home/fpoulin/software/firedrake/bin/pip', 'install', '-r', 'COFFEE/requirements.txt']' returned non-zero exit status 1 ------------------ Francis Poulin Associate Professor Department of Applied Mathematics University of Waterloo email: fpoulin@uwaterloo.ca Web: https://uwaterloo.ca/poulin-research-group/ Telephone: +1 519 888 4567 x32637