Ruby On Rails in UA/Программирование на ROR/Опять ошибка/RE: Опять ошибка

На любой rake консоль выдает это:
C:\lovdbyless>rake lovdbyless:getting_started
(in C:/lovdbyless)
rake aborted!
undefined method `remove_task' for #
C:/lovdbyless/rakefile:10
(See full trace by running task with --trace)

C:\lovdbyless>rake
(in C:/lovdbyless)
rake aborted!
undefined method `remove_task' for #
C:/lovdbyless/rakefile:10
(See full trace by running task with --trace)