Redmine

E:\Ruby193\DevKit>e:\Ruby193\bin\ruby dk.rb install
[INFO] Updating convenience notice gem override for 'e:/Ruby193'
[INFO] Installing 'e:/Ruby193/lib/ruby/site_ruby/devkit.rb'

E:\>cd redmine-2.2.1

E:\redmine-2.2.1>cd Gem

Hi,
please help to check why cann't install i18n gem file, and I have tried to install i18n.gem another version, also display this error.
I have installed ruby187 in another directory on this server.
thanks.

my system OS is win2003x86.

E:\redmine-2.2.1\Gem>e:\Ruby193\bin\gem install i18n -l
Successfully installed i18n-0.6.0
1 gem installed
Installing ri documentation for i18n-0.6.0...
unable to convert U+00E4 from UTF-8 to GBK for lib/i18n/tests/interpolation.rb,
skipping
unable to convert "\xC2" to UTF-8 in conversion from ASCII-8BIT to UTF-8 to GBK
for lib/i18n.rb, skipping
Installing RDoc documentation for i18n-0.6.0...
unable to convert U+00E4 from UTF-8 to GBK for lib/i18n/tests/interpolation.rb,
skipping
unable to convert "\xC2" to UTF-8 in conversion from ASCII-8BIT to UTF-8 to GBK
for lib/i18n.rb, skipping

E:\redmine-2.2.1\Gem>