cannot load such file — mysql2/2.4/mysql2 (LoadError) - windows

问题

I am new on Ruby on Rails. My Ruby version is ruby 2.4.1p111 (2017-03-22 revision 58053) [x64-mingw32].

I have created a new project using rails new sample_cms -d mysql command.

The command rails server is throwing following error.

C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/mysql2-0.4.6-x64-mingw32/lib/mysql2/mysql2.rb:2:in `require': cannot load such file -- mysql2/2.4/mysql2 (LoadError)

I have installed mysql and mysql Connector C. I have installed the mysql2 gem like that.

gem install mysql2 —platform=ruby — ‘—with-mysql-dir="C:\Program Files\MySQL\MySQL Connector C 6.1"’

I have uninstall and install the mysql2 gem but still facing the issue. Here is the directory which may have issue.

image of directory

Here is the gem file entry for mysql2

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.1.1'
# Use mysql as the database for Active Record
gem 'mysql2', '>= 0.3.18', '< 0.5'
# Use Puma as the app server
gem 'puma', '~> 3.7'

Any Help?

回答1:

There is no mysql2 binary for Ruby 2.4 for Windows available at this time. So i uninstall ruby 2.4 and install ruby 2.3. Now it is working well

来源：https://stackoverflow.com/questions/44732205/cannot-load-such-file-mysql2-2-4-mysql2-loaderror-windows