ArgumentError - invalid byte sequence in UTF-8

[antage]

$ /opt/ruby-1.9.2/bin/ruby -v
ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux]
$ /opt/ruby-1.9.2/bin/gem -v
1.3.7
$ echo $LANG
ru_RU.utf8

$ cd workspace/wiki && /opt/ruby-1.9.2/bin/gollum
== Sinatra/1.0 has taken the stage on 4567 for development with backup from Thin
>> Thin web server (v1.2.7 codename No Hup)
>> Maximum connections set to 1024
>> Listening on 0.0.0.0:4567, CTRL+C to stop

After hit http://localhost:4567/ I got error:
ArgumentError - invalid byte sequence in UTF-8:
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/ruby1.9.rb:3:in ord' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/ruby1.9.rb:3:ingetord'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/internal/loose.rb:130:in legacy_loose_object?' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/internal/loose.rb:43:inget_raw_object'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/internal/loose.rb:32:in []' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/repository.rb:84:inblock in get_raw_object_by_sha1'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/repository.rb:83:in each' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/repository.rb:83:inget_raw_object_by_sha1'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/repository.rb:334:in walk_log' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/repository.rb:287:inlog'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby/repository.rb:306:in rev_list' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby.rb:68:inblock in rev_list'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby.rb:224:in block in try_run' /opt/ruby-1.9.2/lib/ruby/1.9.1/timeout.rb:57:intimeout'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby.rb:223:in try_run' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/git-ruby.rb:68:inrev_list'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/commit.rb:94:in find_all' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/grit-2.1.0/lib/grit/repo.rb:261:incommit'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/gollum-1.0.1/lib/gollum/page.rb:254:in find' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/gollum-1.0.1/lib/gollum/wiki.rb:74:inpage'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/gollum-1.0.1/lib/gollum/frontend/app.rb:132:in show_page_or_file' /opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/gollum-1.0.1/lib/gollum/frontend/app.rb:38:inblock in class:App'
/opt/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/sinatra-1.0/lib/sinatra/base.rb:865:in `call'
....

[CameronGilroy]

This is a problem that I am getting as well

[saberma]

I got the same problem.

[dstrelau]

Looks like this is a bug in grit.

http://github.com/mojombo/grit/issues#issue/24

[lamnk]

Got the same issue with 1.9.2-head

[AndreasOM]

Same here with 1.9.2-head.
Switched back to 1.8.7 and now it's working.

[postmodern]

@mojombo merged a fix for this into Grit around August. http://github.com/mojombo/grit/commit/0a80ba282d5864cb3e2ca5868291424932596ddd

[mmeroberts]

Newbie question- running on windows but seeing this - what do I have to do to fix this?