使用 mysql2 會報錯誤訊息(rails 4.2.4)
參考網路上前輩們的解決方案,指定mysql版本,重新bundle install即可解決
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).
解決方案:
Gemfile裡
原 gem 'mysql2'
改成 gem 'mysql2', '~> 0.3.18'
bundle install 即可
參考來源