Redmine

I try to install issue_importer_xls for redmine 2.5.1 in two day. This is tupid. I am very very Trỉed. I cannot fix error to install it

"C:\Program Files (x86)\JetBrains\RubyMine 6.3.3\bin\runnerw.exe" C:\RailsInstaller\Ruby1.9.3\bin\ruby.exe -e $stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) C:/Users/T410/Desktop/redmine-2.5.1/script/rails server -b 127.0.0.1 -p 3000 -e development
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/resolver.rb:357:in `resolve': Could not find gem 'spreadsheet (~> 0.9.7) x86-mingw32' in the gems available on this machine. (Bundler::GemNotFound)
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/resolver.rb:164:in `start'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/resolver.rb:129:in `resolve'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/definition.rb:193:in `resolve'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/definition.rb:132:in `specs'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/definition.rb:177:in `specs_for'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/definition.rb:166:in `requested_specs'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/environment.rb:18:in `requested_specs'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/runtime.rb:13:in `setup'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler.rb:121:in `setup'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.7.4/lib/bundler/setup.rb:17:in `<top (required)>'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `require'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `rescue in require'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
    from C:/Users/T410/Desktop/redmine-2.5.1/config/boot.rb:6:in `<top (required)>'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from C:/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from C:/Users/T410/Desktop/redmine-2.5.1/script/rails:5:in `<top (required)>'
    from -e:1:in `load'
    from -e:1:in `<main>'

Ok this error. I seafch google and in command line I run: bundle install
But i met error: an error occurred installing icon <1.0.4> and bundler cannot continue. Who can help me. OH my god!