`require': cannot load such file -- bootsnap/setup (LoadError) bootstrap導入でrailsがerrorをはく

Question

railsにbootstrapを導入しようとした結果,requireできないというエラーが発生しています。

bundle exec rails s
Traceback (most recent call last):
	14: from bin/rails:3:in `<main>'
	13: from bin/rails:3:in `load'
	12: from /Users/pixel/rails_app/book_log/bin/spring:15:in `<top (required)>'
	11: from /Users/pixel/rails_app/book_log/bin/spring:15:in `require'
	10: from /Users/pixel/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
	 9: from /Users/pixel/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `load'
	 8: from /Users/pixel/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0/gems/spring-2.1.0/bin/spring:49:in `<top (required)>'
	 7: from /Users/pixel/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client.rb:30:in `run'
	 6: from /Users/pixel/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/command.rb:7:in `call'
	 5: from /Users/pixel/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `call'
	 4: from /Users/pixel/.rbenv/versions/2.6.3/lib/ruby/gems/2.6.0/gems/spring-2.1.0/lib/spring/client/rails.rb:28:in `load'
	 3: from /Users/pixel/rails_app/book_log/bin/rails:8:in `<top (required)>'
	 2: from /Users/pixel/rails_app/book_log/bin/rails:8:in `require_relative'
	 1: from /Users/pixel/rails_app/book_log/config/boot.rb:4:in `<top (required)>'
/Users/pixel/rails_app/book_log/config/boot.rb:4:in `require': cannot load such file -- bootsnap/setup (LoadError)

環境
Rails 5.2.4
ruby 2.6.3

gemfile
gem ' bootstrap '、'〜> 4.4.1 '
gem ' jquery-rails '

読み込んでいるコード

application.scss

@import "bootstrap";

上記の問題の解決方法わかる方いらっしゃいましたら、ぜひご教授ください。

Comments

[winterboum]

Gemfileを修正した後、bundle install していますか

Answer 1

Bootstrapを4.4.1にバージョンアップしたら私も同じエラーになりました。Gemfileで指定しているBootstrapのバージョンを4.0.0に下げたら動くかも知れません。

gem 'bootstrap', '~>4.0.0'

私の場合はGemfileを書き直して

$ bundle clean --force
$ bundle update
$ bundle install

で動きました。