railstutorial(第４版)でhello_appのGemfileのインストールを行うとエラーが出ます。

Question

こんにちは。
現在、railstutorial(第４版)をやっていて、hello_appを作成したあとに、Gemfileのバージョンを指定してインストールする所なのですが、bundle installコマンドを実行すると以下のようなエラーが出ます。

コード
[!] There was an error parsing `Gemfile`: You cannot specify the same gem twice with different version requirements.
You specified: sqlite3 (>= 0) and sqlite3 (= 1.3.13). Bundler cannot continue.

 #  from /home/vagrant/environment/hello_app/Gemfile:37
 #  -------------------------------------------
 #  group :development, :test do
 >    gem 'sqlite3',      '1.3.13'
 #    gem 'byebug', '9.0.6', platform: :mri
 #  -------------------------------------------

「sqliteの異なるバージョンを同時に指定することはできないです」という内容のメッセージだと思うのですがこの場合、gem fileの中のgem 'sqlite3'の記述を削除すればいいのですか？

現在のgem fileは以下の状態です。

コード
source 'https://rubygems.org'

git_source(:github) do |repo_name|
  repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
  "https://github.com/#{repo_name}.git"
end


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '5.1.6'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma', '3.9.1'
# Use SCSS for stylesheets
gem 'sass-rails', '5.0.6'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '3.2.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '4.2.2'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '5.0.1'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '2.6.4'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

group :development, :test do
  gem 'sqlite3',      '1.3.13'
  gem 'byebug', '9.0.6', platform: :mri
end

group :development do
  # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
  gem 'web-console', '3.5.1'
  gem 'listen', '3.1.5'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring', '2.0.2'
  gem 'spring-watcher-listen', '2.0.1'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

gem 'jquery-rails', '4.3.1'

よろしくお願いします。

Answer 1

こちらの方を削除して下さい。

group :development, :test do
  gem 'sqlite3',      '1.3.13'
  gem 'byebug', '9.0.6', platform: :mri
end

バージョン指定が必要でしたら、こちらにつけて下さい

# Use sqlite3 as the database for Active Record
gem 'sqlite3'

Comments

[sassan738]

回答いただきありがとうございます。