To what value PATH variable must be set for using Rspec with Ruby on Rails?

Question

I am having problem with setting PATH variable in Ruby on Rails. Constraints are: I have to use Ruby 1.8.7 and Rails 2.2.2 and Rubygems 1.3.5. These are the outputs of commands:

hemant@hemant-laptop:~$ which gem
/usr/bin/gem

hemant@hemant-laptop:~$ which ruby
/usr/local/bin/ruby

hemant@hemant-laptop:~$ which rails
/var/lib/gems/1.8/bin/rails

hemant@hemant-laptop:~$ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.5
  - RUBY VERSION: 1.8.7 (2010-01-10 patchlevel 249) [i486-linux]
  - INSTALLATION DIRECTORY: /var/lib/gems/1.8
  - RUBY EXECUTABLE: /usr/bin/ruby1.8
  - EXECUTABLE DIRECTORY: /var/lib/gems/1.8/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-linux
  - GEM PATHS:
    - /var/lib/gems/1.8
    - /home/hemant/.gem/ruby/1.8

I have added these lines into my .bashrc file:

export PATH=$PATH:/var/lib/gems/1.8/bin
export PATH=$PATH:/usr/bin/gem

When I echo PATH variable:

hemant@hemant-laptop:~$ echo $PATH

usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:bin:/usr/games:/var/lib/gems/1.8/bin:/usr/bin/gem

Real problem is that when I run script/server in my rails app directory, It errors:

./script/../config/../vendor/rails/railties/lib/rails/vendor_gem_source_index.rb:1:in 'require': no such file to load -- rubygems (LoadError)

When I googled it, I got to know that it is due to flaw in PATH variable configuration, but I can't understand what value I should give to it. The above two export statements are just hit and trials but they didn't solve the problem.

Can someone please guide me what value PATH must be set to and how one can deduce the value from outputs of various commands.

[EDIT]

Running gem list gives this:

actionmailer (2.2.2)
actionpack (2.2.2)
activerecord (2.2.2)
activeresource (2.2.2)
activesupport (2.2.2)
chronic (0.10.2)
diff-lcs (1.2.4)
image_science (1.2.1)
libv8 (3.16.14.3)
mysql (2.9.1)
rack (1.5.2)
rails (2.2.2)
rake (0.8.7)
ref (1.0.5)
rspec (1.2.9)
rspec-core (2.14.6)
rspec-expectations (2.14.0)
rspec-mocks (2.14.4)
rspec-rails (1.2.9)
rubygems-update (2.1.10)
therubyracer (0.12.0)
ZenTest (4.3.0)

can you include a `gem list` so we can inspect the installed versions of gems. — jewilmeer, Oct 26 '13 at 13:14
Does this post helps you out? http://stackoverflow.com/questions/2896485/no-such-file-to-load-rubygems-loaderror — jewilmeer, Oct 27 '13 at 09:58
yeah .... that was wonderful, worked like a charm.... thanks!! — Hemant verma, Oct 29 '13 at 16:51

score 0 · Answer 1 · answered Oct 26 '13 at 12:50

To extend your path with new paths which contain executables you need to specify the directory. For the gem command you now pointing to the executable itself.

Try this:

export PATH=$PATH:/usr/bin:/usr/local/bin:/var/lib/gems/1.8/bin

This should include all executables in your path. Make sure to reload your .bashrc before trying again.

source ~/.bashrc

One other solution to solve your problems: Spin-up a virtual machine which is old enough to have the old stuff. Probably ubuntu 12.04 is old enough.

I tried the export you mentioned but still same error :( and I am using Ubuntu 10.04.4 — Hemant verma, Oct 26 '13 at 12:56

To what value PATH variable must be set for using Rspec with Ruby on Rails?

1 Answers1