rails generate rspec:install gives no error, but manpage -

os: linux debian wheezy
rails version: 3.2.0

i want configure rspec work rails.
i'm using instruction: https://github.com/rspec/rspec-rails ('installation' section).

when try:

rails generate rspec:install 

after performing things described in manual before,
get:

usage: rails new app_path [options] 

etc.

how resolve this?

imho relevant part of gemfile:

gem 'rails', '3.2.0'  group :development, :test         gem 'sqlite3', '1.3.5'         gem 'rspec-rails', '~> 2.0' end 

(i'm new rails , using m. hartl manual learn.)
(what have tried already:

• changing rails version (4.0.0, 3.2.0);
• changing rspec version (initially 2.8.0, ~> 2.0);
• a few times 'bundle update', 'bundle install' , 'bundle update rspec-rails';
• installing 'rspec' , 'rspec-rails' using 'gem install';

this because when install gem install rails after june 25, 2013 - install rails 4. when following course, hartl asks copy gemfile located in github repo refers rails '3.2.14'.

to solve problem, create gemset using rvm.

rvm gemset create sample_app  rvm gemset use sample_app 

then create gemfile inside empty folder.

mkdir sample touch gemfile 

copy content form hartl's (gemfile)[https://raw.github.com/railstutorial/sample_app_2nd_ed/master/gemfile] gemfile created , run,

bundle install 

once gems installed, go outside folder , delete it.

cd .. && rm -rf sample 

now create new rails project , skip auto bundle install.

rails new sample --skip-unit-test --skip-bundle 

once rails generated files, go inside folder , replace gemfile contents again hart's gemfile.

now run bundle install

finally can create rvm file automatically switch project gemset.

rvm --create --ruby-version use ruby-2.0.0@sample-app 

ruby-2.0.0 refers system's active ruby version. you'll need replace accordingly.

this should work fine. let me know if have further help.

cheers!