为什么 jruby 在安装 ruby-debug-ide 时给我这个错误？
以下是错误日志，
$ jruby -S gem install ruby-debug-ide -v '0.4.16'
Building native extensions. This could take a while...
ERROR: Error installing ruby-debug-ide:
ERROR: Failed to build gem native extension.
"c:/Program Files/jruby-1.6.6/bin/jruby.exe" mkrf_conf.rb
""c:/Program Files/jruby-1.6.6/bin/jruby.exe"" -rubygems c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/rake-0.9.2.2/bin/rake RUBYARCHDIR="c:/Program Files/jruby-1.6.6/lib/ruby/
gems/1.8/gems/ruby-debug-ide-0.4.16/lib" RUBYLIBDIR="c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.16/lib"
'""c:' is not recognized as an internal or external command,
operable program or batch file.
Gem files will remain installed in c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.16 for inspection.
Results logged to c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.16/ext/gem_make.out
编辑：刚刚在 Rails 3 上的 ruby（而不是 JRuby）上尝试了相同的操作，我得到了相同的错误。
Following is the error logs,
$ jruby -S gem install ruby-debug-ide -v '0.4.16'
Building native extensions. This could take a while...
ERROR: Error installing ruby-debug-ide:
ERROR: Failed to build gem native extension.
"c:/Program Files/jruby-1.6.6/bin/jruby.exe" mkrf_conf.rb
""c:/Program Files/jruby-1.6.6/bin/jruby.exe"" -rubygems c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/rake-0.9.2.2/bin/rake RUBYARCHDIR="c:/Program Files/jruby-1.6.6/lib/ruby/
gems/1.8/gems/ruby-debug-ide-0.4.16/lib" RUBYLIBDIR="c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.16/lib"
'""c:' is not recognized as an internal or external command,
operable program or batch file.
Gem files will remain installed in c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.16 for inspection.
Results logged to c:/Program Files/jruby-1.6.6/lib/ruby/gems/1.8/gems/ruby-debug-ide-0.4.16/ext/gem_make.out
EDIT: Just tried the same with ruby on rails 3 (instead of JRuby) and I get the same error.
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评论（1）
我认为您错过了那里的引号...这就是您收到错误的原因。
I think you're missing the quotes there... It's why you're getting the error you're getting.