ruby-on-rails - 安装rails时出错

Question

Saads-Mac-Pro:~ SMD$ gem install rails
Building native extensions.  This could take a while...
/Users/SMD/.rvm/rubies/ruby-2.0.0- p247/lib/ruby/site_ruby/2.0.0/rubygems/ext/builder.rb:54: warning: Insecure world writable dir /usr in PATH, mode 040777
ERROR:  Error installing rails:
ERROR: Failed to build gem native extension.

/Users/SMD/.rvm/rubies/ruby-2.0.0-p247/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/SMD/.rvm/rubies/ruby-2.0.0-p247/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}/
/Users/SMD/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/mkmf.rb:434:in `try_do': The  compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /Users/SMD/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/mkmf.rb:519:in `try_link0'
from /Users/SMD/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/mkmf.rb:817:in `try_run'
from extconf.rb:24:in `<main>'


Gem files will remain installed in /Users/SMD/.rvm/gems/ruby-2.0.0-p247/gems/atomic-1.1.13 for inspection.
Results logged to /Users/SMD/.rvm/gems/ruby-2.0.0-p247/gems/atomic-1.1.13/ext/gem_make.out

这是我运行此命令 gem install rails 时的输出。我究竟做错了什么？ 提前致谢

编辑:

gem env 的输出:

Saads-Mac-Pro:~ SMD$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 2.0.7
  - RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.3.0]
  - INSTALLATION DIRECTORY: /Users/SMD/.rvm/gems/ruby-2.0.0-p247
  - RUBY EXECUTABLE: /Users/SMD/.rvm/rubies/ruby-2.0.0-p247/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/SMD/.rvm/gems/ruby-2.0.0-p247/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-darwin-12
  - GEM PATHS:
     - /Users/SMD/.rvm/gems/ruby-2.0.0-p247
     - /Users/SMD/.rvm/gems/ruby-2.0.0-p247@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/

Answer 1

我是在阅读了各种文章后才弄明白的。

以下是步骤。

$rvm 获取头部

$rvm --force 2.0.0

$gem 更新

$gem 安装 rails

顺利通过。

输出如下:

Saads-Mac-Pro:~ SMD$ gem install rails

Building native extensions.  This could take a while...

/Users/SMD/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/ext/builder.rb:54: warning: Insecure world writable dir /usr in PATH, mode 040777
Successfully installed atomic-1.1.13
Fetching: thread_safe-0.1.2.gem (100%)
Successfully installed thread_safe-0.1.2
Fetching: activesupport-4.0.0.gem (100%)
Successfully installed activesupport-4.0.0
Fetching: builder-3.1.4.gem (100%)
Successfully installed builder-3.1.4
Fetching: rack-1.5.2.gem (100%)
Successfully installed rack-1.5.2
Fetching: rack-test-0.6.2.gem (100%)
Successfully installed rack-test-0.6.2
Fetching: erubis-2.7.0.gem (100%)
Successfully installed erubis-2.7.0
Fetching: actionpack-4.0.0.gem (100%)
Successfully installed actionpack-4.0.0
Fetching: activemodel-4.0.0.gem (100%)
Successfully installed activemodel-4.0.0
Fetching: arel-4.0.0.gem (100%)
Successfully installed arel-4.0.0
Fetching: activerecord-deprecated_finders-1.0.3.gem (100%)
Successfully installed activerecord-deprecated_finders-1.0.3
Fetching: activerecord-4.0.0.gem (100%)
Successfully installed activerecord-4.0.0
Fetching: mime-types-1.24.gem (100%)
Successfully installed mime-types-1.24
Fetching: polyglot-0.3.3.gem (100%)
Successfully installed polyglot-0.3.3
Fetching: treetop-1.4.15.gem (100%)
Successfully installed treetop-1.4.15
Fetching: mail-2.5.4.gem (100%)
Successfully installed mail-2.5.4
Fetching: actionmailer-4.0.0.gem (100%)
Successfully installed actionmailer-4.0.0
Fetching: thor-0.18.1.gem (100%)
Successfully installed thor-0.18.1
Fetching: railties-4.0.0.gem (100%)
Successfully installed railties-4.0.0
Fetching: hike-1.2.3.gem (100%)
Successfully installed hike-1.2.3
Fetching: tilt-1.4.1.gem (100%)
Successfully installed tilt-1.4.1
Fetching: sprockets-2.10.0.gem (100%)
Successfully installed sprockets-2.10.0
Fetching: sprockets-rails-2.0.0.gem (100%)
Successfully installed sprockets-rails-2.0.0
Fetching: rails-4.0.0.gem (100%)
Successfully installed rails-4.0.0
Parsing documentation for atomic-1.1.13
unable to convert "\xCF" from ASCII-8BIT to UTF-8 for lib/atomic_reference.bundle, skipping
Installing ri documentation for atomic-1.1.13
Parsing documentation for thread_safe-0.1.2
Installing ri documentation for thread_safe-0.1.2
Parsing documentation for activesupport-4.0.0
unable to convert "\x80" from ASCII-8BIT to UTF-8 for lib/active_support/values/unicode_tables.dat, skipping
Installing ri documentation for activesupport-4.0.0
Parsing documentation for builder-3.1.4
/Users/SMD/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rdoc/parser.rb:87: warning: Unsupported encoding : ignored
/Users/SMD/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rdoc/parser.rb:87: warning: Unsupported encoding  ignored
Installing ri documentation for builder-3.1.4
Parsing documentation for rack-1.5.2
Installing ri documentation for rack-1.5.2
Parsing documentation for rack-test-0.6.2
Installing ri documentation for rack-test-0.6.2
Parsing documentation for erubis-2.7.0
Installing ri documentation for erubis-2.7.0
Parsing documentation for actionpack-4.0.0
Installing ri documentation for actionpack-4.0.0
Parsing documentation for activemodel-4.0.0
Installing ri documentation for activemodel-4.0.0
Parsing documentation for arel-4.0.0
Installing ri documentation for arel-4.0.0
Parsing documentation for activerecord-deprecated_finders-1.0.3
Installing ri documentation for activerecord-deprecated_finders-1.0.3
Parsing documentation for activerecord-4.0.0
Installing ri documentation for activerecord-4.0.0
Parsing documentation for mime-types-1.24
Installing ri documentation for mime-types-1.24
Parsing documentation for polyglot-0.3.3
Installing ri documentation for polyglot-0.3.3
Parsing documentation for treetop-1.4.15
Installing ri documentation for treetop-1.4.15
Parsing documentation for mail-2.5.4
unable to convert "\x80" from ASCII-8BIT to UTF-8 for lib/mail/values/unicode_tables.dat, skipping
Installing ri documentation for mail-2.5.4
Parsing documentation for actionmailer-4.0.0
Installing ri documentation for actionmailer-4.0.0
Parsing documentation for thor-0.18.1
Installing ri documentation for thor-0.18.1
Parsing documentation for railties-4.0.0
Installing ri documentation for railties-4.0.0
Parsing documentation for hike-1.2.3
Installing ri documentation for hike-1.2.3
Parsing documentation for tilt-1.4.1
Installing ri documentation for tilt-1.4.1
Parsing documentation for sprockets-2.10.0
Installing ri documentation for sprockets-2.10.0
Parsing documentation for sprockets-rails-2.0.0
Installing ri documentation for sprockets-rails-2.0.0
Parsing documentation for rails-4.0.0
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unable to convert "\x89" from ASCII-8BIT to UTF-8 for guides/assets/images/icons/note.png, skipping
unable to convert "\x89" from ASCII-8BIT to UTF-8 for guides/assets/images/icons/prev.png, skipping
unable to convert "\x89" from ASCII-8BIT to UTF-8 for guides/assets/images/icons/tip.png, skipping
unable to convert "\x89" from ASCII-8BIT to UTF-8 for guides/assets/images/icons/up.png, skipping
unable to convert "\x89" from ASCII-8BIT to UTF-8 for guides/assets/images/icons/warning.png, skipping
unable to convert "\xFF" from ASCII-8BIT to UTF-8 for guides/assets/images/jaimeiniesta.jpg, skipping
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unable to convert "\xFF" from ASCII-8BIT to UTF-8 for guides/assets/images/vijaydev.jpg, skipping
Installing ri documentation for rails-4.0.0
24 gems installed

Sorry couldn't edit the terminal output. Too many lines!