Rails - Dec 2010 - Consider using bundle exec? How do I resolve this error "You have already activated rspec-core..."

I''m pretty newb... when I try to run my rspec tests I get the following
error:

You have already activated rspec-core 2.3.1, but your Gemfile requires
rspec-core 2.1.0. Consider using bundle exec.

At one point for another app  was working with I did have  rspec-core 2.31
defined, but in this app I have my Gemfile as:

source ''http://rubygems.org''

gem ''rails'', ''3.0.3''
gem ''sqlite3-ruby'', ''1.2.5'', :require =>
''sqlite3''

group :development do
  gem ''rspec-rails'', ''2.1.0''
end

group :test do
  gem ''rspec'', ''2.1.0''
  gem ''webrat'', ''0.7.1''
end

and I had done bundle install previously which shows:

Using abstract (1.0.0)
Using activesupport (3.0.3)
Using builder (2.1.2)
Using i18n (0.5.0)
Using activemodel (3.0.3)
Using erubis (2.6.6)
Using rack (1.2.1)
Using rack-mount (0.6.13)
Using rack-test (0.5.6)
Using tzinfo (0.3.23)
Using actionpack (3.0.3)
Using mime-types (1.16)
Using polyglot (0.3.1)
Using treetop (1.4.9)
Using mail (2.2.12)
Using actionmailer (3.0.3)
Using arel (2.0.6)
Using activerecord (3.0.3)
Using activeresource (3.0.3)
Using bundler (1.0.7)
Using diff-lcs (1.1.2)
Using nokogiri (1.4.4)
Using thor (0.14.6)
Using railties (3.0.3)
Using rails (3.0.3)
Using rspec-core (2.1.0)
Using rspec-expectations (2.1.0)
Using rspec-mocks (2.1.0)
Using rspec (2.1.0)
Using rspec-rails (2.1.0)
Using sqlite3-ruby (1.2.5)
Using webrat (0.7.1)

The only thing on google I found was related to
http://stackoverflow.com/questions/3695504/rails3-rspec-issue and it''s
implying I need to manually delete some gems? This is confusing. I am also
using rvm if that matters. I ran into all of this going through the ruby on
rails tutorial
http://railstutorial.org/chapters/filling-in-the-layout#book_menu chapter 3.

-- 
Rick R

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> You have already activated rspec-core 2.3.1, but your Gemfile requires
> rspec-core 2.1.0. Consider using bundle exec.
Did you consider using bundle exec?

Precede your command with "bundle exec", i.e. "bundle exec rspec
spec"

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On Tue, Dec 21, 2010 at 5:11 PM, E. Litwin
<elitwin-ur4TIblo6goN+BqQ9rBEUg@public.gmane.org> wrote:
> > You have already activated rspec-core 2.3.1, but your Gemfile requires
> > rspec-core 2.1.0. Consider using bundle exec.
>
> Did you consider using bundle exec?
>
> Precede your command with "bundle exec", i.e. "bundle exec
rspec spec"
>

I had tried typing "bundle exec" and received errors, didn''t
realize it it
was "bundle exec rspec spec" I''ll have to read up what that
does.

The solution was to read further along in the tutorial.. and it mentions
this to fix issues...


$ rvm gemset delete rails3tutorial
$ rvm --create use 1.9.2@rails3tutorial
$ rvm --default 1.9.2@rails3tutorial
$ gem install rails -v 3.0.3 $ bundle install

I guess it''s a good practice to setup a gemset specific for each
project. I
hadn''t done that previously (which yes I know the tutorial does mention
to
do earlier.)

-- 
Rick R

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