我正在尝试在Ubuntu 9.10上安装Rails。
gem list --local
*** LOCAL GEMS ***
actionmailer (2.3.4, 2.3.2)
actionpack (2.3.4, 2.3.2)
activerecord (2.3.4, 2.3.2)
activeresource (2.3.4, 2.3.2)
activesupport (2.3.4, 2.3.2)
rack (1.0.1)
rails (2.3.4, 2.3.2)
rake (0.8.7)
sqlite3-ruby (1.2.5)
rake
The program 'rake' is currently not installed. You can install it by typing:
sudo apt-get install rake
rake: command not found
我该如何解决这个问题?