in `require': no such file to load — iconv (LoadError)

Question

    ➜  expertiza git:(master) ✗ ruby -v
    ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-darwin11.1.0]
    ➜  expertiza git:(master) ✗ rails -v
    Rails 2.3.14
    ➜  expertiza git:(master) ✗ script/server
/Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/inflector.rb:3:in `require': no such file to load -- iconv (LoadError)
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/inflector.rb:3
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext/integer/inflections.rb:1:in `require'
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext/integer/inflections.rb:1
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext/integer.rb:2:in `require'
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext/integer.rb:2
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext.rb:8:in `require'
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext.rb:8
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext.rb:8:in `each'
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support/core_ext.rb:8
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support.rb:56:in `require'
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/activesupport-2.3.14/lib/active_support.rb:56
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/rails-2.3.14/lib/commands/server.rb:1:in `require'
    from /Users/HPV/.rvm/gems/ruby-1.8.7-p352/gems/rails-2.3.14/lib/commands/server.rb:1
    from script/server:3:in `require'

I have tried installing

rvm pkg install readline
rvm pkg install iconv
rvm install 1.8.7
rvm use 1.8.7 

Even tried Why does installing Nokogiri on Mac OS fail with libiconv is missing?.

Nothing works. Please help!

Thanks!

Answer 1

It shows that the iconv not exist but the iconv has installed in my production env.

root@AY130/current# iconv --version
iconv (Ubuntu EGLIBC 2.15-0ubuntu10.4) 2.15
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Ulrich Drepper.

To resolve it, add this in your Gemfile:

gem "iconv", "~> 1.0.3"

Then run bundle install.

Note: iconv has been deprecated for a while. It is replaced by (builtin) String#encode
See here: https://bbs.archlinux.org/viewtopic.php?id=160369

Answer 2

For those using rbenv instead of rvm

$ which iconv
$ /usr/local/bin/iconv

Then use the directory location of iconv to reinstall ruby

$ CONFIGURE_OPTS="--with-iconv-dir=/usr/local" rbenv install 1.8.7-p358

Good luck

(As a side note, this error has been reported to happen in Ruby 1.8.7-p3xx)