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redis requires ruby version2.2.2的解决方案

程序员文章站 2022-11-21 15:51:05
今天在做redis的cluster集群的时候,在执行gem install redis时,提示如下错误: gem install redis error: error installing redis...

今天在做redis的cluster集群的时候,在执行gem install redis时,提示如下错误:

    gem install redis
    error:  error installing redis:
     redis requires ruby version >= 2.2.2.

centos7 yum库中ruby的版本支持到 2.0.0,可gem 安装redis需要最低是2.2.2,采用rvm来更新ruby:

1、安装rvm(具体命令可以查看官网,ruby官网地址 ruby官网安装教程):

//具体rvm安装命令地址:http://rvm.io/
  [root@linux ~]# gpg --keyserver hkp://keys.gnupg.net --recv-keys 409b6b1796c275462a1703113804bb82d39dc0e3 7d2baf1cf37b13e2069d6956105bd0e739499bdb 

  [root@linux ~]# curl -ssl https://get.rvm.io | bash -s stable

  [root@linux ~]# find / -name rvm -print

     /usr/local/rvm
     /usr/local/rvm/src/rvm
     /usr/local/rvm/src/rvm/bin/rvm
     /usr/local/rvm/src/rvm/lib/rvm
     /usr/local/rvm/src/rvm/scripts/rvm
     /usr/local/rvm/bin/rvm
     /usr/local/rvm/lib/rvm
     /usr/local/rvm/scripts/rvm

 [root@linux ~]# source /usr/local/rvm/scripts/rvm

 2、查看rvm库中已知的ruby版本:

   [root@linux ~]# 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[.7]
    [ruby-]2.3[.4]
    [ruby-]2.4[.1]
    ruby-head
    ….

3、安装一个ruby版本:

  [root@linux ~]# rvm install 2.4.1
    searching for binary rubies, this might take some time.
    found remote file https://rvm_io.global.ssl.fastly.net/binaries/centos/7/x86_64/ruby-2.4.1.tar.bz2
    checking requirements for centos.
    requirements installation successful.
    ruby-2.4.1 - #configure
    ruby-2.4.1 - #download
      % total    % received % xferd  average speed   time    time     time  current
                                     dload  upload   total   spent    left  speed
    100 14.1m  100 14.1m    0     0    97k      0  0:02:27  0:02:27 --:--:--  159k
    no checksum for downloaded archive, recording checksum in user configuration.
    ruby-2.4.1 - #validate archive
    ruby-2.4.1 - #extract
    ruby-2.4.1 - #validate binary
    ruby-2.4.1 - #setup
    ruby-2.4.1 - #gemset created /usr/local/rvm/gems/ruby-2.4.1@global
    ruby-2.4.1 - #importing gemset /usr/local/rvm/gemsets/global.gems..............................
    ruby-2.4.1 - #generating global wrappers........
    ruby-2.4.1 - #gemset created /usr/local/rvm/gems/ruby-2.4.1
    ruby-2.4.1 - #importing gemsetfile /usr/local/rvm/gemsets/default.gems evaluated to empty gem list
    ruby-2.4.1 - #generating default wrappers........

4、使用一个ruby版本:

  [root@linux ~]# rvm use 2.4.1
       using /usr/local/rvm/gems/ruby-2.4.1

5、设置默认版本:(设置ruby2.4.1为默认的ruby,因为还安装有1.8.3)

  [root@linux ~]# rvm use 2.4.1 --default
        using /usr/local/rvm/gems/ruby-2.4.1

6、卸载一个已知版本:

 [root@linux ~]# rvm remove 2.3.4

7、查看ruby版本:

[root@linux ~]# ruby --version
ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]

8、安装redis:

  [root@linux ~]# 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 3 seconds
    1 gem installed

问题解决,不错,过了年就解决了一个问题,还是值得庆祝的。

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