Octoprint 1.4.0 ?

[vincentdieltiens]

I tried to install this plugin for octoprint 1.4.0 without success.

Here is the content of octoprint.log :

2020-04-16 17:08:14,420 - octoprint.plugins.pluginmanager - ERROR - Could not install plugin from https://github.com/jcbelanger/OctoPrint-WebNotifications/archive/master.zip
Traceback (most recent call last):
  File "/home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pluginmanager/__init__.py", line 462, in command_install
    returncode, stdout, stderr = self._call_pip(pip_args)
  File "/home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pluginmanager/__init__.py", line 879, in _call_pip
    return self._pip_caller.execute(*args, **kwargs)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/pip.py", line 185, in execute
    return self.call(command, **kwargs)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/commandline.py", line 228, in call
    all_stderr += process_stderr(p.stderr.readlines(timeout=0.5))
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/commandline.py", line 224, in process_stderr
    return process_lines(lines, self._log_stderr)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/commandline.py", line 216, in process_lines
    l = self._preprocess_lines(*map(lambda x: to_unicode(x, errors="replace"), lines))
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/pip.py", line 414, in _preprocess_lines
    return list(map(self._preprocess, lines))
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/pip.py", line 433, in _preprocess
    return to_unicode(clean_ansi(text))
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/commandline.py", line 54, in clean_ansi
    return _ANSI_REGEX.sub(b"", line.encode("latin1")).decode("latin1")
UnicodeEncodeError: 'latin-1' codec can't encode character u'\u2018' in position 77: ordinal not in range(256)
2020-04-16 17:08:14,430 - tornado.access - ERROR - 500 POST /api/plugin/pluginmanager (::ffff:192.168.1.57) 107253.87ms

Any idea of how to solve the problem ?

Thanks,

Vincent