无法加载这样的文件 - readline（LoadError）在运行heroku时创建 - 堆雪松 [英] cannot load such file -- readline (LoadError) when running heroku create --stack cedar

问题描述

我试图将我的Rails应用程序部署到Heroku中，按照以下说明进行测试：
$ b http://devcenter.heroku.com/articles/rails3#prerequisites

这里是我试图运行的命令：

  heroku create --stack cedar 
  
 
 
 
我得到以下错误信息：
 
 
  /home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in`require'：无法加载这样的文件 -  readline（LoadError ）从/home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in`require'
 
 from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/command/run.rb:1:in`< top（required）>' $ / b / b来自/home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
 from /home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in`require'
 from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/command.rb:14:in`block in load'
 from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/command.rb:13:in'each'
 from / home / sergio / .rvm / gems / ruby​​-1.9.3-p125 / gems / heroku-2.20.1 / lib / heroku / command.rb：13：`load'
 from /home/sergio/.rvm/gems/ ruby-1.9.3-p125 / gems / heroku-2.20.1 / lib / heroku / cli.rb：8：在'start'
从/home/sergio/.rvm/gems/ruby-1.9.3 -p125 / gems / heroku-2.20.1 / bin / heroku：15：在<< top（required）>'
 from /home/sergio/.rvm/gems/ruby-1.9.3-p125 / bin / heroku：19：`load'
 from /home/sergio/.rvm/gems/ruby-1.9.3-p125/bin/heroku:19:in`< main>'
  
这是有问题的文件的内容：
 ＃ -  
＃Copyright 2006 by Chad Fowler，Rich Kilmer，Jim Weirich等人。 
＃保留所有权利。 
＃请参阅LICENSE.txt获取权限。 
＃++ 
 
模块内核
 
如果已定义？（gem_original_require）然后
＃Ruby带有custom_require，覆盖它的require 
 remove_method：require 
 else 
 ## 
＃加载RubyGems之前的内核＃需求。 
 
 alias gem_original_require require 
 private：gem_original_require 
 end 
 
 ## 
＃当需要RubyGems时，Kernel＃require会被我们的拥有哪些
＃能够按需加载宝石。 
＃
＃当您调用< tt> require'x'< / tt>时，会发生以下情况：
＃*如果可以从现有的Ruby加载路径加载文件，它
＃是。 
＃*否则，会搜索已安装的gems以查找匹配的文件。 
＃如果在gem'y'中找到该宝石，则激活该宝石（添加到
＃加载路径中）。 
＃
＃正常< tt>要求< / tt>如果
＃该文件已被加载，则返回false的功能将被保留。 
 
 def需要路径
如果Gem.unresolved_deps.empty？那么
 gem_original_require path 
 else 
 spec = Gem :: Specification.find {| s | 
 s.activated？和s.contains_requirable_file？路径
} 
 
除非规范然后
 found_specs = Gem :: Specification.find_in_unresolved路径
除非found_specs.empty？然后
 found_specs = [found_specs.last] 
 else 
 found_specs = Gem :: Specification.find_in_unresolved_tree path 
 end 
 
 found_specs.each do | found_spec | 
 found_spec.activate 
 end 
 end 
 
 return gem_original_require path 
 end 
 rescue LoadError => load_error 
如果load_error.message.end_with？（path）和Gem.try_activate（path）then 
 return gem_original_require（path）
 end 
 
 raise load_error 
结束
 
私人：需要
 
结束
  
我可以使用 rails -s 在本地运行我的应用程序，但我似乎无法将其发布到Heroku。
解决方案
 iltempo和buru的答案帮助了我： 
 
 
  sudo apt-get install libreadline -dev 
 
 rvm remove 1.9.3 
 
 rvm install 1.9.3 
 
然后添加到您的Gemfile：
 
 gem'rb-readline'
  
 
I'm trying to deploy my Rails application to Heroku to test it out by following these instructions:


http://devcenter.heroku.com/articles/rails3#prerequisites

Here is the command I'm trying to run:
heroku create --stack cedar
And I get this error message:
/home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- readline (LoadError)
    from /home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/command/run.rb:1:in `<top (required)>'
    from /home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /home/sergio/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/command.rb:14:in `block in load'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/command.rb:13:in `each'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/command.rb:13:in `load'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/lib/heroku/cli.rb:8:in `start'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/gems/heroku-2.20.1/bin/heroku:15:in `<top (required)>'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/bin/heroku:19:in `load'
    from /home/sergio/.rvm/gems/ruby-1.9.3-p125/bin/heroku:19:in `<main>'
And this is the content of the file in question:
#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++

module Kernel

  if defined?(gem_original_require) then
    # Ruby ships with a custom_require, override its require
    remove_method :require
  else
    ##
    # The Kernel#require from before RubyGems was loaded.

    alias gem_original_require require
    private :gem_original_require
  end

  ##
  # When RubyGems is required, Kernel#require is replaced with our own which
  # is capable of loading gems on demand.
  #
  # When you call <tt>require 'x'</tt>, this is what happens:
  # * If the file can be loaded from the existing Ruby loadpath, it
  #   is.
  # * Otherwise, installed gems are searched for a file that matches.
  #   If it's found in gem 'y', that gem is activated (added to the
  #   loadpath).
  #
  # The normal <tt>require</tt> functionality of returning false if
  # that file has already been loaded is preserved.

  def require path
    if Gem.unresolved_deps.empty? then
      gem_original_require path
    else
      spec = Gem::Specification.find { |s|
        s.activated? and s.contains_requirable_file? path
      }

      unless spec then
        found_specs = Gem::Specification.find_in_unresolved path
        unless found_specs.empty? then
          found_specs = [found_specs.last]
        else
          found_specs = Gem::Specification.find_in_unresolved_tree path
        end

        found_specs.each do |found_spec|
          found_spec.activate
        end
      end

      return gem_original_require path
    end
  rescue LoadError => load_error
    if load_error.message.end_with?(path) and Gem.try_activate(path) then
      return gem_original_require(path)
    end

    raise load_error
  end

  private :require

end
I can run my application locally using rails -s, but I just can't seem to publish it to Heroku.
解决方案
iltempo and buru's answers helped me:
sudo apt-get install libreadline-dev

rvm remove 1.9.3

rvm install 1.9.3

Then add to your Gemfile:

gem 'rb-readline'


                        
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