Specified 'sqlite3' for database adapter, but the gem is not loaded. Add `gem 'sqlite3'` to your Gem
问题:出现上面的提示后,我gem安装了sqlite3,并且bundleinstall了,在gems中也有sqlite3,但是依然报错。google了一下,有人说是sqlite3(1.4.0)版本高了的问题,所以在Gemfile中将gem'sqlite3'改为gem‘sqlite3’,'~>1.3.0'然后bundleinstall,再启动服务器,ok!