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devise インストール時にAn error occurred while installing bcrypt (3.1.12), and Bundler cannot continue. Make sure that `gem install bcrypt -v '3.1.12' --source 'https://rubygems.org/'` succeeds before bundling.　エラーがでる

Posted at 2019-01-21

deviseを以下手順でインストールする際に

gem 'devise'

bundle install

以下のエラーが出て進めない。。。

An error occurred while installing bcrypt (3.1.12), and Bundler cannot continue.
Make sure that `gem install bcrypt -v '3.1.12' --source 'https://rubygems.org/'` succeeds before
bundling.

最近MAC OSをMojaveにアップデートした方だとエラーが発生するそうです！
ターミナルで以下入力して解決できました！！

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devise インストール時にAn error occurred while installing bcrypt (3.1.12), and Bundler cannot continue. Make sure that `gem install bcrypt -v '3.1.12' --source 'https://rubygems.org/'` succeeds before bundling. エラーがでる

devise インストール時にAn error occurred while installing bcrypt (3.1.12), and Bundler cannot continue. Make sure that `gem install bcrypt -v '3.1.12' --source 'https://rubygems.org/'` succeeds before bundling.　エラーがでる