cannot load such file -- bootsnap/setup (LoadError)を解決してlocalhost:3000を開きたい。
現在railsチュートリアルを始めてlocalhost:3000を開く作業につまづいています。rails serverを起動すると以下のような感じでエラーが出てしまいます。
発生している問題・エラーメッセージ
Traceback (most recent call last): 15: from bin/rails:3:in `<main>' 14: from bin/rails:3:in `load' 13: from /Users/oohirakatsuya/environment/hello_app/bin/spring:15:in `<top (required)>' 12: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:70:in `require' 11: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:70:in `require' 10: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `<top (required)>' 9: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `load' 8: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/bin/spring:49:in `<top (required)>' 7: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client.rb:30:in `run' 6: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client/command.rb:7:in `call' 5: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `call' 4: from /Users/oohirakatsuya/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `load' 3: from /Users/oohirakatsuya/environment/hello_app/bin/rails:8:in `<top (required)>' 2: from /Users/oohirakatsuya/environment/hello_app/bin/rails:8:in `require_relative' 1: from /Users/oohirakatsuya/environment/hello_app/config/boot.rb:4:in `<top (required)>' /Users/oohirakatsuya/environment/hello_app/config/boot.rb:4:in `require': cannot load such file -- bootsnap/setup (LoadError)
試したこと
私はrailsの5.2.1を使っていましてrailsチュートリアルのリスト1.5 (以下)を自分のGemfileにコピペしました。原因は2行目の'5.1.6'だと思い'5.2.1'に書き換えBundle updateして再度bundle installを行い、もう一度rails serverを実行してもやはりエラーが出てlocalhostが開けません。
source 'https://rubygems.org'
gem 'rails', '5.1.6'
gem 'puma', '3.9.1'
gem 'sass-rails', '5.0.6'
gem 'uglifier', '3.2.0'
gem 'coffee-rails', '4.2.2'
gem 'jquery-rails', '4.3.1'
gem 'turbolinks', '5.0.1'
gem 'jbuilder', '2.6.4'
group :development, :test do
gem 'sqlite3', '1.3.13'
gem 'byebug', '9.0.6', platform: :mri
end
group :development do
gem 'web-console', '3.5.1'
gem 'listen', '3.1.5'
gem 'spring', '2.0.2'
gem 'spring-watcher-listen', '2.0.1'
end
Windows環境ではtzinfo-dataというgemを含める必要があります
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
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2018/10/14 06:27