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Created June 11, 2019 21:09
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Fedora 29, ruby-2.5.5 - gem command fails
Fedora 29
# rpm -q ruby rubygems
ruby-2.5.5-101.fc29.x86_64
rubygems-2.7.6.2-101.fc29.noarch
# which gem
/usr/bin/gem
[root@Helium etc]# gem
/usr/share/ruby/yaml.rb:5: warning: It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
Traceback (most recent call last):
16: from /usr/bin/gem:21:in `<main>'
15: from /usr/share/rubygems/rubygems/gem_runner.rb:44:in `run'
14: from /usr/share/rubygems/rubygems/gem_runner.rb:79:in `do_configuration'
13: from /usr/share/rubygems/rubygems/gem_runner.rb:79:in `new'
12: from /usr/share/rubygems/rubygems/config_file.rb:202:in `initialize'
11: from /usr/share/rubygems/rubygems/config_file.rb:349:in `load_file'
10: from /usr/share/rubygems/rubygems.rb:709:in `load_yaml'
9: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:59:in `require'
8: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:59:in `require'
7: from /usr/share/ruby/yaml.rb:6:in `<top (required)>'
6: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:59:in `require'
5: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:59:in `require'
4: from /usr/local/share/gems/gems/psych-3.1.0/lib/psych.rb:13:in `<top (required)>'
3: from /usr/local/share/gems/gems/psych-3.1.0/lib/psych.rb:16:in `rescue in <top (required)>'
2: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:39:in `require'
1: from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:135:in `require': libruby.so.2.4: cannot open shared object file: No such file or directory - /usr/local/lib64/gems/ruby/psych-3.1.0/psych.so (LoadError)
I have re-installed libyaml, ruby, rubygems, and ruby-libs, with no change in behaviour.
File libruby.so.2.4 doesn't exist anywhere. No Fedora package seems to provide it, nor does any provide /usr/local/lib64/gems/ruby/psych-3.1.0/psych.so.
And with `gem` not working, I seem to be Catch-22ed.
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