Ruby サーバーを新しいサーバーに移行しようとしています。そのmongrel.logファイルにエラーが表示されます：
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in gem_original_require: no such file to load -- yahoo-weather (MissingSourceFile)
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in require
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:184:in require
from /home/dianahot/rails_apps/dianahotels/config/initializers/included_libraries.rb:9
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:173:in load_without_new_constant_marking
from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:173:in load
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/initializer.rb:622:in load_application_initializers
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/initializer.rb:621:in each
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/initializer.rb:621:in load_application_initializers
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/initializer.rb:176:in process
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/initializer.rb:113:in send
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/initializer.rb:113:in run
from /home/dianahot/rails_apps/dianahotels/config/environment.rb:12
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in gem_original_require
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in require
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:147:in rails
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:113:in cloaker_
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:149:in call
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:149:in listener
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:99:in cloaker_
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:50:in call
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:50:in initialize
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in new
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in run
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/command.rb:212:in run
from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
from /usr/bin/mongrel_rails:23:in load
from /usr/bin/mongrel_rails:23
それらの行はどういう意味ですか?
編集：
yahoo-weather gem を手動でインストールしようとしたところ、次のエラーが発生しました。
gem install yahoo-weather
Fetching: nokogiri-1.5.2.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing yahoo-weather:
ERROR: Failed to build gem native extension.
/usr/bin/ruby extconf.rb
checking for libxml/parser.h... yes
checking for libxslt/xslt.h... no
-----
libxslt is missing. please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/bin/ruby
--with-zlib-dir
--without-zlib-dir
--with-zlib-include
--without-zlib-include=${zlib-dir}/include
--with-zlib-lib
--without-zlib-lib=${zlib-dir}/lib
--with-iconv-dir
--without-iconv-dir
--with-iconv-include
--without-iconv-include=${iconv-dir}/include
--with-iconv-lib
--without-iconv-lib=${iconv-dir}/lib
--with-xml2-dir
--without-xml2-dir
--with-xml2-include
--without-xml2-include=${xml2-dir}/include
--with-xml2-lib
--without-xml2-lib=${xml2-dir}/lib
--with-xslt-dir
--without-xslt-dir
--with-xslt-include
--without-xslt-include=${xslt-dir}/include
--with-xslt-lib
--without-xslt-lib=${xslt-dir}/lib
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/nokogiri-1.5.2 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/nokogiri-1.5.2/ext/nokogiri/gem_make.out
root@server2 [/usr/lib/ruby/gems/1.8/gems]# % gem install yahoo-weather
-bash: fg: %: no such job
root@server2 [/usr/lib/ruby/gems/1.8/gems]#