Ruby 1.9.3
Gemfile的一部分
#...............
gem "pony"
gem "bcrypt-ruby", :require => "bcrypt"
gem "nokogiri"
#..................
当我尝试安装宝石时,我收到一个错误
alex@ubuntu:~/$ bundle
Fetching gem metadata from http://rubygems.org/.........
Fetching gem metadata from http://rubygems.org/..
Enter your password to install the bundled RubyGems to your system:
#####............................................................
Installing bcrypt-ruby (3.0.1) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:36:in `<main>'
Gem files will remain installed in /home/alex/.bundler/tmp/5526/gems/bcrypt-ruby-3.0.1 for inspection.
Results …我一直在根据edX在线课程的指令安装Ruby on Rails.
以下是终端命令列表,以及相应的输出:
$ sudo apt-get install ruby1.9.1
安装成功
$ wget http://production.cf.rubygems.org/rubygems/rubygems-1.8.24.tgz
$ tar zxvf ruby-1.8.24.tgz
$ cd ruby-1..8.24
$ sudo ruby setup.rb
RubyGems 1.8.24 installed
== 1.8.24 / 2012-04-27
* 1 bug fix:
* Install the .pem files properly. Fixes #320
* Remove OpenSSL dependency from the http code path
------------------------------------------------------------------------------
RubyGems installed the following executables:
/usr/bin/gem1.9.1
到目前为止,一切看起来都很好,但我试图安装rails并失败:
$ sudo gem install rails
Fetching: i18n-0.6.1.gem (100%)
Fetching: multi_json-1.3.6.gem (100%)
Fetching: activesupport-3.2.8.gem (100%)
Fetching: builder-3.0.3.gem (100%)
Fetching: activemodel-3.2.8.gem (100%) …我正在尝试安装ruby gem(Jekyll)并且我一直收到以下错误.
ERROR: Error installing jekyll:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:1:in `<main>'
我正在使用Raspberry Pi.在询问Ruby的版本时,我得到以下内容:
user@raspberrypi ~ $ ruby -version
ruby 1.9.3p194 (2012-04-20 revision 35410) [arm-linux-eabihf]
-e:1:in `<main>': undefined local variable or method `rsion' for main:Object (NameError)
几个小时前,我通过运行命令安装了最新版本的Ruby:
sudo curl -L https://get.rvm.io | bash -s stable --ruby
为了找出问题的根源,我尝试安装不同的gem(lolcat).它成功安装并完美运行.
我究竟做错了什么？
先感谢您!