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安装完ruby环境后,安装redis接口时报错:redis requires Ruby versio

原文 http://blog.csdn.net/zhaoyahui_666/article/details/78716511

2017-12-06 02:01:09阅读(435)

在执行gem install redis时,报错:

gem install redis
    ERROR:  Error installing redis:
            redis requires Ruby version >= 2.2.2.
这句话的意思是,安装redis需要ruby版本最低是2.2.2,而centos yum库中ruby版本支持到2.0.0。所以,无法满足需求。


1、安装RVM

gpg2 --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3
    curl -L get.rvm.io | bash -s stable
    find / -name rvm -print

2、查看rvm库中已知的ruby版本

rvm list known
MRI Rubies
[ruby-]1.8.6[-p420]
[ruby-]1.8.7[-head] # security released on head
[ruby-]1.9.1[-p431]
[ruby-]1.9.2[-p330]
[ruby-]1.9.3[-p551]
[ruby-]2.0.0[-p648]
[ruby-]2.1[.10]
[ruby-]2.2[.6]
[ruby-]2.3[.3]
[ruby-]2.4[.0]
ruby-head

3、安装一个ruby版本

rvm install 2.3.3
No checksum for downloaded archive, recording checksum in user configuration.
ruby-2.3.3 - #extracting rubygems-2.6.12….
ruby-2.3.3 - #removing old rubygems………
ruby-2.3.3 - #installing rubygems-2.6.12…………………….
ruby-2.3.3 - #gemset created /usr/local/rvm/gems/ruby-2.3.3@global
ruby-2.3.3 - #importing gemset /usr/local/rvm/gemsets/global.gems…………..|
ruby-2.3.3 - #generating global wrappers……..
ruby-2.3.3 - #gemset created /usr/local/rvm/gems/ruby-2.3.3
ruby-2.3.3 - #importing gemsetfile /usr/local/rvm/gemsets/default.gems evaluated to empty gem list
ruby-2.3.3 - #generating default wrappers……..
ruby-2.3.3 - #adjusting #shebangs for (gem irb erb ri rdoc testrb rake).
Install of ruby-2.3.3 - #complete
Ruby was built without documentation, to build it run: rvm docs generate-ri

4、使用一个ruby版本
rvm use 2.3.3
Using /usr/local/rvm/gems/ruby-2.3.3
5、设置默认版本

rvm use 2.3.3 --default
Using /usr/local/rvm/gems/ruby-2.3.3
6、卸载一个已知版本

rvm remove 2.0.0
7、查看ruby版本
ruby --version
ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux]

8、安装redis

gem install redis
Fetching: redis-4.0.1.gem (100%)
Successfully installed redis-4.0.1
Parsing documentation for redis-4.0.1
Installing ri documentation for redis-4.0.1
Done installing documentation for redis after 0 seconds
1 gem installed

完成!!!

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