Could not find gem ‘sqlite3 (>= 0) x64-mingw32‘ in any of the gem sources listed in your Gemfile or available on this machine.

Run `bundle install` to install missing gems.

在 windows下搭建Ruby Rails Web开发环境 时遇到这个问题，

出现此问题的原因是：没有安装sqlite3

安装sqlite3

执行命令：gem install sqlite3-ruby

[plain] view plaincopy

1. C:\ruby>gem install sqlite3-ruby
2. Fetching: sqlite3-1.3.11-x64-mingw32.gem (100%)
3. Successfully installed sqlite3-1.3.11-x64-mingw32
4. Fetching: sqlite3-ruby-1.3.3.gem (100%)
5. #######################################################
6. Hello! The sqlite3-ruby gem has changed it‘s name to just sqlite3.  Rather than
7. installing `sqlite3-ruby`, you should install `sqlite3`.  Please update your
8. dependencies accordingly.
9. Thanks from the Ruby sqlite3 team!
10. <3 <3 <3 <3
11. #######################################################
12. Successfully installed sqlite3-ruby-1.3.3
13. Parsing documentation for sqlite3-1.3.11-x64-mingw32
14. Installing ri documentation for sqlite3-1.3.11-x64-mingw32
15. Parsing documentation for sqlite3-ruby-1.3.3
16. Installing ri documentation for sqlite3-ruby-1.3.3
17. Done installing documentation for sqlite3, sqlite3-ruby after 1 seconds
18. 2 gems installed

安装过程中可能会出现以下问题：

Could not find gem ‘sqlite3 (>= 0) x64-mingw32‘ in any of the gem sources listed in your Gemfile or available on this machine.
Run `bundle install` to install missing gems.
" port 443 (https://api.rubygems.org/quick/Marshal.4.8/sqlite3-ruby-1.3.3.gemspec.rz)

这可能是由于网络的原因，多试几次就好了。

Could not find gem 'sqlite3 (>= 0) x64-mingw32' in any of the gem sources listed in your Gemfile