Install a gem for just ruby 1.9.2?

Question

如何指定要在哪个版本的宝石中安装宝石？

Answer 1

Are you using RVM? If so, just go to you ruby:

rvm 1.9.2-head

then do

gem install whatever

Answer 2

use RVM. This is a good tutorial.

Do focus on creating gemset

Answer 3

您需要使用RVM ，这样就可以管理为什么红宝石/铁轨安装了什么宝石。

Answer 4

Are you not using RVM?

$> rvm use 1.9.2 
$> gem install <gem name>

The gem will be installed only for Ruby 1.9.2