redis requires Ruby version >= 2.2.2

你的名字 2022-04-02 10:13 232阅读 0赞

在执行gem install redis时

提示:

gem install redis ERROR: Error installing redis: redis requires Ruby version >= 2.2.2.

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查了查资料,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,自己编译的ruby源码,再执行还是报错…最后google结合几篇文章解决了:

采用rvm来更新ruby:

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

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/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

source /usr/local/rvm/scripts/rvm

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2.查看rvm库中已知的ruby版本

rvm list known

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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

我的是:rvm install 2.5.1

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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

我的是:rvm use 2.5.1

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Using /usr/local/rvm/gems/ruby-2.3.3

\[5\].设置默认版本

rvm use 2.3.3 --default

我的是:rvm use 2.5.1 --default

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Using /usr/local/rvm/gems/ruby-2.3.3

\[6\].卸载一个已知版本

rvm remove 2.0.0

我没用这步骤

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查看ruby版本:

ruby --version

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ruby 2.3.3p222 (2016-11-21 revision 56859) \[x86\_64-linux\]

安装redis:

gem install redis

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Fetching: redis-4.0.0.gem (100%)

Successfully installed redis-4.0.0

Parsing documentation for redis-4.0.0

Installing ri documentation for redis-4.0.0

Done installing documentation for redis after 1 seconds

1 gem installed

redis requires Ruby version >= 2.2.2

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