Beginner issue: ./savon.rb:41: uninitialized constant Savon (NameError)

[TJ Yang]

I am migrating a perl soap client script over to Ruby using savon.

Need help to get pass this roadblock,  "uninitialized constant Savon (NameError)"

Any idea where I did wrong ?

1. OS and test script s1.rb

[root@t-fedora14-32 ruby]# cat /etc/redhat-release

Fedora release 14 (Laughlin)

[root@t-fedora14-32 ruby]# cat s1.rb

#!/bin/env ruby

#

require 'rubygems'

require 'savon'

client = Savon::Client.new do

  wsdl.document = "http://service.example.com?wsdl"

end

[root@t-fedora14-32 ruby]#

2. The error message

[root@t-fedora14-32 ruby]# ./s1.rb

./savon.rb:41: uninitialized constant Savon (NameError)

        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'

        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'

        from ./s1.rb:4

[root@t-fedora14-32 ruby]#

3. ruby and gem info

[root@t-fedora14-32 ruby]# gem -v

1.8.1

[root@t-fedora14-32 ruby]# gem list |grep savon

savon (0.9.6, 0.9.2)

[root@t-fedora14-32 ruby]#

[Alex Katebi]

You need to install the savon gem

By the way savon is flaky in ruby 1.9.2. use 1.8.7 instead

gem install savon

[TJ Yang]

Here is another try, I removed existing savon 0.9.2 and 0.9.6 and install 0.9.6 again.

See the irb debug log, the error message is from savron.rb line 41.

[root@fl36t-fedora14-32 ruby]# gem -v

1.8.6

[root@t-fedora14-32 ruby]# ruby -v

ruby 1.8.7 (2011-06-30 patchlevel 352) [i386-linux]

[root@fl36t-fedora14-32 ruby]# gem list |grep savon

savon (0.9.6, 0.9.2)

[root@t-fedora14-32 ruby]# gem uninstall  savon

Select gem to uninstall:

 1. savon-0.9.2

 2. savon-0.9.6

 3. All versions

> 3

Successfully uninstalled savon-0.9.2

Successfully uninstalled savon-0.9.6

[root@fl36t-fedora14-32 ruby]# 

[root@t-fedora14-32 ruby]# gem install  --http-proxy http:/test.com.com:8080 savon

Fetching: savon-0.9.6.gem (100%)

Successfully installed savon-0.9.6

1 gem installed

Installing ri documentation for savon-0.9.6...

Installing RDoc documentation for savon-0.9.6...

[root@t-fedora14-32 ruby]# irb

irb(main):001:0> require 'rubygems'

=> true

irb(main):002:0> require 'savon'

NameError: uninitialized constant Savon

        from ./savon.rb:41

        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'

        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'

        from (irb):2

        from :0

irb(main):003:0>

[Alex Katebi]

In ruby 1.8.7 you need to do "require 'rubygems'" before any other require.

[Alex Katebi]

Are you using rvm? I am trying to see if I get your error.

On Tue, Aug 2, 2011 at 8:27 AM, TJ Yang <tjyan...@gmail.com> wrote:

[Alex Katebi]

It looks like that your savon gem installed with errors but you thought it went ok. I suggest you do:

gem install savon --no-rdoc --no-ri

I just did it with no errors.

On Tue, Aug 2, 2011 at 8:27 AM, TJ Yang <tjyan...@gmail.com> wrote:

[TJ Yang]

Argh, My bad, I havea  test savon script named as "savon.rb", so "require" command import "./savon.rb" first and generate the error message.

Alex, thanks for your help.

tj