Rails 3找不到sqlite3 ruby

我正在努力学习铁路。

sudo gem install rake rack-test rack-mount erubis mail
sudo gem install tzinfo builder i18n memcache-client
sudo gem install text-format thor

和rails 3 via

sudo gem install rails --pre

rails abc

试试看

rake db:create

失败的原因是

Could not find gem 'sqlite3-ruby (>= 0, runtime)' in any of the sources.

所以我试着安装 sqlite3-ruby

sudo gem install sqlite3-ruby

失败的原因是

Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.

所以我通过apt-get安装它

sudo aptitude install libsqlite3-ruby1.8

但仍然得到相同的错误 rake db:创建 .