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【Rails】gem install で特定のversionをインストールする

Ruby
Rails

Last updated at 2020-02-26Posted at 2020-01-09

gem install gem_name -v version_number

gem install gem_name --version version_number

gem install gem_name:version_number

コロンでもversion指定ができる
https://github.com/rubygems/rubygems/blob/master/lib/rubygems/commands/install_command.rb

Can't use --version with multiple gems. You can specify multiple gems with version requirements using gem install 'my_gem:1.0.0' 'my_other_gem:~>2.0.0'

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