Something wrong happened when I tried to start rails server:
dailicious@dailicious:~/Project/Ruby WS/first_app$ rails server
Could not find gem ‘sqlite3 (>= 0)’ in any of the gem sources listed in your Gemfile.
SOLUTIONS:
root@dailicious:~#apt-get install libsqlite3-dev
root@dailicious:~# gem install sqlite3-ruby
