Command line option --allow-releaseinfo-change is not understood in combination with the other options about octoprint-upgrade-to-py3 HOT 3 CLOSED

Probably easiest to edit the script to remove the extra argument - maybe older versions of apt & co don't have that option. I didn't design the script to work on Debian OSes where Python 3.6+ was not available in the repositories.

You can find it on line 193 to remove it.

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@cp2004 Thanks for your help. Finally I successfully updated OctoPrint's environment to Python 3.7.4. So you can close this issue now. I will document my procedure below in case someone else has encountered similar problems.

Error: E: Command line option --allow-releaseinfo-change is not understood in combination with the other options
Operation: removed the argument --allow-releaseinfo-change and reran the script 'upgrade.py'

Error: Failed to create Python 3 venv because of ModuleNotFoundError: no module named apt_pkg
Error: Command '('lsb_release', '-a')' returned non-zero exit status 2
Operations:

• cd /usr/lib/python3/dist-packages/
• sudo ln -s apt_pkg.cpython-37m-x86_64-linux-gnu.so apt_pkg.so
• sudo apt-get upgrade
• sudo apt-get --fix-broken install
• sudo apt-get remove python3.5*
• sudo apt-get autoremove
• sudo apt-get --purge remove && sudo apt-get autoclean
• cd /var/lib/dpkg/info/
• rm the-package-causing error
• sudo mv info info.bak
• sudo mkdir info
• sudo apt-get update
• sudo apt-get upgrade && sudo apt-get dist-upgrade
• sudo apt-get install python3-dev
• sudo apt-get install python3-venv
  Then excute the upgrade.py again
• cd /home/pi/.../OctoPrint/
• sudo rm -rf venv
• sudo mv venv.bak venv
• python3 upgrade.py

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Thanks for getting back with the full steps that worked for you to get it running. I'll keep it in mind if I see other issues. Although now it makes it easier to see why I didn't recommend the manual Python installation approach, especially to people who didn't know what they were doing as they wouldn't have been able to figure that out. 👍

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