no such file to load -- rexml/encodings/UTF8.rb

I'm install ruby 1.8.7 from rvm on FreeBSD 9 RELEASE, and then I parse
xml I get this error:
no such file to load -- rexml/encodings/UTF8.rb

Here is response (cyrillic symbols):

    <trip>
      <Round num="151">АС ЖИТОМИР - ОСТ АП БОРИСПІЛЬ</Round>
      <regularity>93</regularity>
      <bus>ГАЗЕЛЬ</bus>
      <distance>121</distance>
      <ArrFromPoint time=""/>

Here is my gems list:

gem list

*** LOCAL GEMS ***

actionmailer (2.3.5)
actionpack (2.3.5)
activemodel (3.2.2)
activerecord (2.3.5)
activeresource (2.3.5)
activesupport (3.2.2, 2.3.5)
arel (3.0.2)
bson (1.6.1, 1.4.0)
bson_ext (1.6.1)
builder (3.0.0)
bundler (1.1.2)
chronic (0.6.7)
crack (0.3.1)
dalli (1.1.5)
datanoise-actionwebservice (2.3.5)
erubis (2.7.0)
hike (1.2.1)
htmlentities (4.3.1)
i18n (0.6.0)
javan-whenever (0.3.7)
jnunemaker-validatable (1.8.4)
journey (1.0.3)
libxml-ruby (2.3.2)
mail (1.6.0)
mime-types (1.18)
modularity (0.6.1)
mongo (1.4.0)
mongo_ext (0.19.3)
mongo_mapper (0.8.6)
mongoid (2.4.7)
multi_json (1.1.0)
mysql (2.8.1)
net-scp (1.0.4)
net-sftp (2.0.5)
net-ssh (2.3.0)
nokogiri (1.5.2)
plucky (0.3.8)
rack (1.4.1, 1.0.1)
rack-cache (1.2)
rack-test (0.6.1)
rails (2.3.5)
rake (0.9.2)
rmagick (2.13.1)
ruby-hmac (0.4.0)
rubygems-update (1.5.3)
rubyzip (0.9.6.1)
savon (0.7.9)
searchlogic (2.4.28)
sprockets (2.1.2)
tilt (1.3.3)
tzinfo (0.3.32)
unicode (0.4.2)
xml-simple (1.1.1)

ruby -v
ruby 1.8.7 (2012-02-08 patchlevel 358) [x86_64-freebsd9.0]

God damn… c’mon…

activesupport (3.2.2, 2.3.5)
For what you’re using rvm? for collecting branch of gems version in one gemset?

Remove 3.2.2 version… and ensure that you have installed rexml lib.

No, it's don't work.

How do you run the parser?

Is it in the Rails app or a single script?

Try including rexml directly in (irb or rails)console and post the response

We include REXML directly in console, same result, this is Rails app,
here is example what we do:

include REXML

=> Object

and after that we post request to our provider and parse answer from
him, and get error:

no such file to load -- rexml/encodings/UTF8.rb
NoMethodError: You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.[]

On Ubuntu it works fine, on FreeBSD 8.2 or FreeBSD 9.0 we get error :frowning: