Sqlite3 gem没有加载,gem安装并在项目中指定

Question

因此,在我寻求使用ruby dev环境的过程中,我遇到了一个似乎......让这个红宝石菜鸟感到困惑的问题.

执行rails服务器时,它会按预期启动,但是当您将localhost:3000放入标准Web浏览器时,它会回复以下内容:

为数据库适配器指定'sqlite3',但未加载gem.添加gem 'sqlite3'到您的Gemfile.

现在这里是令人困惑的部分.我安装了sqlite3(64位版本,就像我下载的那样,运行的是64位操作系统),由gem查询验证(这里是宝石的完整列表)

卸载和重新安装并不能解决手头的问题,但它确实安装顺利.我正在测试这个项目的gem文件就是folliwing

source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.0'

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

# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.0'

# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'

# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'

# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'

# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'

# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 1.2'

group :doc do
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', require: false
end

# Use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'

# Use unicorn as the app server
# gem 'unicorn'

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

# Use debugger
# gem 'debugger', group: [:development, :test]

正如你所看到的,sqlite3很早就在Gemfile中指定了,但是当我尝试加载主页面时,无论出于何种原因,它就像它不存在一样.

此机器的详细信息如下所述:宝石部分中未提及:

Rails 4 Ruby 2 Windows 7

以前有人遇到过这个吗？

Answer 1

我也遇到过这个问题.进入你的Gemfile.lock文件并搜索'sqlite3'条目.你会注意到它将sqlite3 (1.3.8-x86-mingw32). 更改为sqlite3 (1.3.8-x64-mingw32),然后运行bundle install命令,一切都应该正常工作.