在 `require' 中：没有要加载的文件 -- iconv (LoadError)答案

【问题标题】：in `require': no such file to load -- iconv (LoadError)在 `require' 中：没有要加载的文件 -- iconv (LoadError)
【发布时间】：2011-12-11 09:47:06
【问题描述】：

    ➜  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'

我试过安装

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

甚至尝试过Why does installing Nokogiri on Mac OS fail with libiconv is missing?。

没有任何作用。请帮忙！

谢谢！

【问题讨论】：

标签： ruby-on-rails ruby terminal rvm iconv

【解决方案1】：

它显示 iconv 不存在，但 iconv 已安装在我的生产环境中。

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.

要解决它，请将其添加到您的 Gemfile 中：

gem "iconv", "~> 1.0.3"

然后运行bundle install。

注意：iconv 已被弃用一段时间。它被（内置）String#encode
替换见这里：https://bbs.archlinux.org/viewtopic.php?id=160369

【讨论】：

在 Ruby 2.0.0 上指定 iconv gem 对我有用。谢谢！
比重新编译要好得多，这要花很长时间:)
这对我不起作用。我收到错误ERROR: While executing gem ... (Gem::CommandLineError) Unknown command iconv,

【解决方案2】：

对于那些使用rbenv而不是rvm的人

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

然后使用iconv的目录位置重新安装ruby

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

祝你好运

（附带说明，据报道此错误发生在 Ruby 1.8.7-p3xx 中）

【讨论】：