NoMethodError: undefined method `request='

Hello, I'm following along on the Railsspace Tutorial and I keep
getting this one error. Any help would be appreciated. Sorry if this
isn't enough information. What else would help?

Thanks a million.

dhcp128036168070:rails_space Hans$ ruby test/unit/user_test.rb --trace
invalid option: --trace
Test::Unit automatic runner.
Usage: test/unit/user_test.rb [options] [-- untouched arguments]

    -r, --runner=RUNNER Use the given RUNNER.
                                     (c[onsole], f[ox], g[tk], g[tk]2,
    -n, --name=NAME Runs tests matching NAME.
                                     (patterns may be used).
    -t, --testcase=TESTCASE Runs tests in TestCases matching
                                     (patterns may be used).
    -I, --load-path=DIR[:DIR...] Appends directory list to
    -v, --verbose=[LEVEL] Set the output level (default is
                                     (s[ilent], p[rogress], n[ormal], v
        -- Stop processing options so that
                                     remaining options will be passed
to the
    -h, --help Display this help.

Deprecated options:
        --console Console runner (use --runner).
        --gtk GTK runner (use --runner).
        --fox Fox runner (use --runner).

dhcp128036168070:rails_space Hans$

Hans wrote:

Hello, I'm following along on the Railsspace Tutorial


Unless it's been updated, my understanding is that RailsSpace was
written for an old version of Rails. The current version is 2.3.4; you
might want to find a more recent tutorial.