如何使用rvm和gem安装和运行指南针？

Question

操作系统:Mint Linux 11 64位

我对红宝石一无所知,我只想要指南针.

我已经安装了rvm和ruby 1.9.3,并设置了默认的ruby

$ rvm list

rvm rubies

=* ruby-1.9.3-p125 [ x86_64 ]

# => - current
# =* - current && default
#  * - default

我已经通过gem安装了指南针

$ gem list

*** LOCAL GEMS ***

bundler (1.1.3)
chunky_png (1.2.5)
compass (0.12.1)
fssm (0.2.8.1)
rake (0.9.2)
rubygems-bundler (0.2.8)
sass (3.1.15)

但我无法运行指南针,因为gem/bin不在$ PATH中

我把它添加到$ PATH并再次运行指南针:

$ compass
/home/il/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find compass (>= 0) amongst [bigdecimal-1.1.0, io-console-0.3, json-1.5.4, minitest-2.5.1, rake-0.9.2.2, rdoc-3.9.4] (Gem::LoadError)
from /home/il/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
from /home/il/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems.rb:1230:in `gem'
from /home/il/.rvm/gems/ruby-1.9.3-p125/bin/compass:18:in `<main>'

有人可以帮忙吗？

Answer 1

$ rvm wrapper 1.9.3@compass --no-prefix compass

Answer 2

假设已安装rvm,您可以执行以下操作:

$ rvm install 2.1.1
$ rvm @global do gem install compass

不需要做sudo.