使用ruby 1.9.2，rails3.1.0，当我尝试生成脚手架时，为什么会出现错误。

问题描述：

基本上，当我尝试生成一个脚手架，我得到这个错误 no such file to load -- openssl (LoadError)。错误来自使用ruby 1.9.2，rails3.1.0，当我尝试生成脚手架时，为什么会出现错误。

.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require'

不知道为什么会发生这种情况。以下是完整的错误：

/home/spencer/.rvm/gems/[email protected]/gems/rack-1.3.4/lib/rack/backports/uri/common_192.rb:53: warning: already initialized constant WFKV_ 
/home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require': no such file to load -- openssl (LoadError) 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `block in load_dependency' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:640:in `new_constants_in' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require' 
    from /home/spencer/.rvm/gems/[email protected]/gems/rack-1.3.4/lib/rack/session/cookie.rb:1:in `<top (required)>' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `block in require' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `block in load_dependency' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:640:in `new_constants_in' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency' 
    from /home/spencer/.rvm/gems/[email protected]/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:240:in `require' 
    from /home/spencer/.rvm/gems/[email protected]/gems/actionpack-3.1.0/lib/action_dispatch/middleware/session/cookie_store.rb:4:in `<top (required)>' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application/configuration.rb:125:in `const_get' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application/configuration.rb:125:in `session_store' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application.rb:168:in `block in default_middleware_stack' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application.rb:142:in `tap' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application.rb:142:in `default_middleware_stack' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/engine.rb:445:in `app' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application/finisher.rb:37:in `block in <module:Finisher>' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `instance_exec' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/initializable.rb:25:in `run' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/initializable.rb:50:in `block in run_initializers' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `each' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/initializable.rb:49:in `run_initializers' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application.rb:92:in `initialize!' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/railtie/configurable.rb:30:in `method_missing' 
    from /home/spencer/Desktop/blog/config/environment.rb:5:in `<top (required)>' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application.rb:78:in `require' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/application.rb:78:in `require_environment!' 
    from /home/spencer/.rvm/gems/[email protected]/gems/railties-3.1.0/lib/rails/commands.rb:22:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>'

答

如果你在Linux下，你可以尝试这些

apt-get install openssl 
apt-get install libopenssl-ruby

这很可能不会解决问题，除非他重新编译Ruby。这个问题是由编译Ruby时缺少libopenssl-ruby库引起的。如果偶然发生这种情况，那么请阅读'rvm notes'的输出，它会告诉您要安装的确切软件包。 –

http://beginrescueend.com/packages/openssl/我现在正在尝试此操作。在第二个发现....没有工作。 –

答

你应该能够做这样的事情：（原谅的事实，有可能是我的路径错误而我不是在我的Linux盒）

cd to ~.rvm/src/ruby-1.9.2-p290/ext/openssl 
ruby extconf.rb 
make 
make install

基本上，只要CD创业板的源目录为您的特定版本的红宝石和重建/安装此。

你不需要重建红宝石，这是一个常见的问题。

答

好，所以我最终做的是这样的。

卸载红宝石的所有版本，从RVM
删除所有gemsets从RVM
$ RVM PKG安装OpenSSL的
$ RVM PKG安装的zlib
$ RVM安装1.9.2 - 与-的OpenSSL DIR = $ HOME/.rvm在/ usr --with-zlib的-DIR = $ rvm_path的/ usr
在重新安装宝石轨道

之后一切正常。

使用ruby 1.9.2，rails3.1.0，当我尝试生成脚手架时，为什么会出现错误。

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