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我是新紅寶石和我現在面臨一個問題，通過安裝紅寶石項目所需的一些寶石，我試圖建立JRuby的安裝失敗的寶石依賴cool.io
我已經安裝了RVM和我嘗試運行下面的命令來獲取，如果我的理解以及我的項目
$> jruby --1.9 /home/user/.gem/jruby/1.9/bin/bundle install
的缺失依賴關係和我陷入以下異常：
Fetching additional metadata from https://rubygems.org/..
Resolving dependencies...
Installing rake 0.9.6
Installing addressable 2.3.6
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/jruby-1.7.12-dev/bin/jruby extconf.rb
/usr/local/rvm/rubies/jruby-1.7.12/lib/ruby/shared/mkmf.rb:14: Use RbConfig instead of obsolete and deprecated Config.
mkmf.rb can't find header files for ruby at /usr/local/rvm/rubies/jruby-1.7.12/lib/native/include/ruby/ruby.h
extconf failed, uncaught signal 1
Gem files will remain installed in /usr/local/rvm/gems/jruby-1.7.12/gems/cool.io-1.2.4 for inspection.
Results logged to /usr/local/rvm/gems/jruby-1.7.12/extensions/universal-java-1.7/1.9/cool.io-1.2.4/gem_make.out
我的版本是
$> ruby -v
jruby 1.7.12 (1.9.3p392) 2014-04-15 643e292 on Java HotSpot(TM) 64-Bit Server VM 1.7.0_60-b19 [linux-amd64]
我在類似帖子上看到dev包缺失，但是如何通過rvm安裝它？