Rails:为数据库适配器指定了"mysql2"，但未加载gem [英] Rails: Specified 'mysql2' for database adapter but the gem is not loaded

问题描述

显然，有一个线程可以解决此问题.但是我已经尝试运行解决方案中给出的那些命令.由于某些原因，我仍然遇到相同的错误.

apparently there is a thread that addresses this issue . But I have already tried to run those commands given in the solution. I am still getting the same error for some reason.

我跑步 gem install mysql2 -v 0.3.18

之后 bundle install

在我的终端上.然后我通过键入以下命令启动服务器 Rails服务器

on my terminal. And than I start the server by typing rails server

打开localhost:3000后.我收到同样的错误.

Upon opening the localhost:3000. I receive the same error.

为数据库适配器指定了"mysql2"，但未加载gem.将gem 'mysql2'添加到您的Gemfile中(并确保其版本为ActiveRecord要求的最低版本).

Specified 'mysql2' for database adapter, but the gem is not loaded. Add gem 'mysql2' to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).

任何帮助将不胜感激.

Any help would be much appreciated.

推荐答案

将以下内容添加到您的Gemfile:

Add the following to your Gemfile:

gem 'mysql2', '~> 0.3.18'

然后运行:

bundle install

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