gem install rails
ERROR: While executing gem ... (Gem::DependencyError)
Unable to resolve dependencies: railties requires rdoc (~> 3.4); mail requires mime-types (~> 1.16), treetop (~> 1.4.8); sprockets requires hike (~> 1.2), tilt (!= 1.3.0, ~> 1.1)
rvm info
ruby-1.9.3-p0@walalu:
system:
uname: "Darwin mac.local 11.2.0 Darwin Kernel Version 11.2.0: Tue Aug 9 20:54:00 PDT 2011; root:xnu-1699.24.8~1/RELEASE_X86_64 x86_64"
bash: "/bin/bash => GNU bash, version 3.2.48(1)-release (x86_64-apple-darwin11)"
zsh: "/bin/zsh => zsh 4.3.11 (i386-apple-darwin11.0)"
rvm:
version: "rvm 1.10.0 by Wayne E. Seguin ([email protected]) [https://rvm.beginrescueend.com/]"
ruby:
interpreter: "ruby"
version: "1.9.3p0"
date: "2011-10-30"
platform: "x86_64-darwin11.2.0"
patchlevel: "2011-10-30 revision 33570"
full_version: "ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]"
homes:
gem: "/Users/mac/.rvm/gems/ruby-1.9.3-p0@walalu"
ruby: "/Users/mac/.rvm/rubies/ruby-1.9.3-p0"
binaries:
ruby: "/Users/mac/.rvm/rubies/ruby-1.9.3-p0/bin/ruby"
irb: "/Users/mac/.rvm/rubies/ruby-1.9.3-p0/bin/irb"
gem: "/Users/mac/.rvm/rubies/ruby-1.9.3-p0/bin/gem"
rake: "/Users/mac/.rvm/gems/ruby-1.9.3-p0@global/bin/rake"
environment:
PATH: "/Users/mac/bin:/Users/mac/.rvm/gems/ruby-1.9.3-p0@walalu/bin:/Users/mac/.rvm/gems/ruby-1.9.3-p0@global/bin:/Users/mac/.rvm/rubies/ruby-1.9.3-p0/bin:/Users/mac/.rvm/bin:/usr/local/mysql/bin:/opt/local/bin:/opt/local/sbin:/usr/local/Trolltech/Qt-4.7.0/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin"
GEM_HOME: "/Users/mac/.rvm/gems/ruby-1.9.3-p0@walalu"
GEM_PATH: "/Users/mac/.rvm/gems/ruby-1.9.3-p0@walalu:/Users/mac/.rvm/gems/ruby-1.9.3-p0@global"
MY_RUBY_HOME: "/Users/mac/.rvm/rubies/ruby-1.9.3-p0"
IRBRC: "/Users/mac/.rvm/rubies/ruby-1.9.3-p0/.irbrc"
RUBYOPT: ""
gemset: "walalu"
先安装一下依赖？
$ gem dependency railties
Gem railties-3.0.6
actionpack (= 3.0.6)
activesupport (= 3.0.6)
rake (>= 0.8.7)
thor (~> 0.14.4)
Gem railties-3.0.10
actionpack (= 3.0.10)
activesupport (= 3.0.10)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (~> 0.14.4)
Gem railties-3.0.11
actionpack (= 3.0.11)
activesupport (= 3.0.11)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (~> 0.14.4)
Gem railties-3.1.1
actionpack (= 3.1.1)
activesupport (= 3.1.1)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (~> 0.14.6)
gem install rdoc -v 3.4
gem install mime-types -v 1.16
gem install treetop -v 1.4.8
gem install hike -v1.2
gem install tilt -v 1.1
然后再 尝试
gem install rails
我想还是网络的原因可能性比较大，通过 gem 的安装 rails 过程大概是
Step 1: 从 rubygems.org 取得 rails 的 metadata 中的 dependencies Step 2: 发现 dependencies 中包含了 railties，然后递归读取 railties 的 metadata 中的 dependencies Step 3: 直到读取出所有的 dependencies，然后按照依赖顺序下载安装
所以我怀疑问题在 Step 2, 网络原因嫌疑最大。
