fedora 29 dnf system-upgrade

[antivir88]

Traceback (most recent call last):
File "/usr/bin/dnf", line 58, in
main.user_main(sys.argv[1:], exit_code=True)
File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 179, in user_main
errcode = main(args)
File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 64, in main
return _main(base, args, cli_class, option_parser_class)
File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 99, in _main
return cli_run(cli, base)
File "/usr/lib/python3.7/site-packages/dnf/cli/main.py", line 115, in cli_run
cli.run()
File "/usr/lib/python3.7/site-packages/dnf/cli/cli.py", line 1055, in run
return self.command.run()
File "/usr/lib/python3.7/site-packages/dnf-plugins/system_upgrade.py", line 322, in run
self._call_sub("run")
File "/usr/lib/python3.7/site-packages/dnf-plugins/system_upgrade.py", line 330, in _call_sub
subfunc()
File "/usr/lib/python3.7/site-packages/dnf-plugins/system_upgrade.py", line 465, in run_download
state.destdir = self.base.conf.destdir
File "/usr/lib/python3.7/site-packages/dnf-plugins/system_upgrade.py", line 135, in exit
self.write()
File "/usr/lib/python3.7/site-packages/dnf-plugins/system_upgrade.py", line 123, in write
json.dump(self._data, outf)
File "/usr/lib64/python3.7/json/init.py", line 179, in dump
for chunk in iterable:
File "/usr/lib64/python3.7/json/encoder.py", line 431, in _iterencode
yield from _iterencode_dict(o, _current_indent_level)
File "/usr/lib64/python3.7/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/usr/lib64/python3.7/json/encoder.py", line 438, in _iterencode
o = _default(o)
File "/usr/lib64/python3.7/json/encoder.py", line 179, in default
raise TypeError(f'Object of type {o.class.name} '
TypeError: Object of type VectorString is not JSON serializable

[m-blaha]

Please, what is the version of system-upgrade plugin you are using?
$ rpm -q python3-dnf-plugin-system-upgrade
There were similar bugs https://bugzilla.redhat.com/show_bug.cgi?id=1649745 and https://bugzilla.redhat.com/show_bug.cgi?id=1643551 and both of them should be fixed in F29.

[antivir88]

python3-dnf-plugin-system-upgrade-3.0.2-1.fc29.noarch

[m-blaha]

You should be able to upgrade to 4.0.7-2.fc29 version from the Fedora 29 - Updates repo. I believe this version has the issue fixed.

[pkratoch]

This looks like resolved, so I am closing it. If you can still reproduce the issue, please don't hesitate to reopen it.