There have been some reports that upon trying to update OctoPrint on an OctoPi 0.16 image the update can fail with an
2019-11-06 06:10:58,806 ! Exception: 2019-11-06 06:10:58,807 ! Traceback (most recent call last): 2019-11-06 06:10:58,808 ! File "/home/pi/oprint/local/lib/python2.7/site-packages/pip/_internal/cli/base_command.py", line 176, in main 2019-11-06 06:10:58,809 ! status = self.run(options, args) 2019-11-06 06:10:58,809 ! File "/home/pi/oprint/local/lib/python2.7/site-packages/pip/_internal/commands/install.py", line 346, in run 2019-11-06 06:10:58,810 ! session=session, autobuilding=True 2019-11-06 06:10:58,810 ! File "/home/pi/oprint/local/lib/python2.7/site-packages/pip/_internal/wheel.py", line 886, in build 2019-11-06 06:10:58,811 ! assert have_directory_for_build 2019-11-06 06:10:58,811 ! AssertionError 2019-11-06 06:11:00,314 ! You are using pip version 19.0.1, however version 19.3.1 is available. 2019-11-06 06:11:00,314 ! You should consider upgrading via the 'pip install --upgrade pip' command.
The underlying cause for this error appears to be a bug in the version of the
pip tool that is included on the image and that can fail under certain conditions (the precise nature of these conditions in the context of this update problem has not yet been determined). See
The solution is simple. SSH into your Pi (default user/password is
raspberry) and run the following commands:
source ~/oprint/bin/activate pip install -U pip
That will update the version of
pip to one that doesn't have this bug. After that the update should run through.