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我不斷收到以下錯誤。我有rvm 1.25.17（stable），ruby 2.1.0p0修訂版44422.另外，我檢查了我的Xcode安裝，我認爲它是最新版本（3.2/in/Applications和5.0.2）。在某個時候，一個錯誤告訴我我的Xcode可能沒有安裝。我經過長時間的休息後重新回到了編程中，並且無所適從。只是想獲得一些Ruby on Rails的設置...無法在我的系統上安裝Rails
Fetching: atomic-1.1.14.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
/Users/ecualombian/.rvm/rubies/ruby-2.1.0/bin/ruby extconf.rb
*** 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=/Users/ecualombian/.rvm/rubies/ruby-2.1.0/bin/ruby
--with-atomic_reference-dir
--without-atomic_reference-dir
--with-atomic_reference-include
--without-atomic_reference-include=${atomic_reference-dir}/include
--with-atomic_reference-lib
--without-atomic_reference-lib=${atomic_reference-dir}/lib
/Users/ecualombian/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /Users/ecualombian/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/mkmf.rb:541:in `try_link0'
from /Users/ecualombian/.rvm/rubies/ruby-2.1.0/lib/ruby/2.1.0/mkmf.rb:840:in `try_run'
from extconf.rb:26:in `<main>'
extconf failed, exit code 1
Gem files will remain installed in /Users/ecualombian/.rvm/rubies/ruby-2.1.0/lib/ruby/gems/2.1.0/gems/atomic-1.1.14 for inspection.
Results logged to /Users/ecualombian/.rvm/rubies/ruby-2.1.0/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-12/2.1.0-static/atomic-1.1.14/gem_make.out
提供您的系統和'mkmf.log' –