Ruby-LoadError enc / trans / single_byte [英] Ruby - LoadError enc/trans/single_byte

问题描述

在Ruby on Rails应用程序中使用ActiveRecord :: Store模块时遇到了一个奇怪的问题。据我了解，该模块在后台使用序列化方法，因此它仅使用内置的ruby内置心理宝石将数据序列化为yaml格式。

I encountered a weird problem while using ActiveRecord::Store module in my Ruby on Rails app. As I understand, this module use 'serialize' method under the hood so it just serialize your data to yaml format with ruby built-in psych gem.

最有效有时，但有时出现500错误，并显示以下消息：

It works OK most of the time, but sometimes I get 500 error with the following message:

LoadError (cannot load such file -- enc/trans/single_byte):
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/emitter.rb:27:in `write'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/emitter.rb:27:in `end_document'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/emitter.rb:27:in `visit_Psych_Nodes_Document'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/emitter.rb:20:in `block in visit_Psych_Nodes_Stream'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/emitter.rb:20:in `each'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/emitter.rb:20:in `visit_Psych_Nodes_Stream'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/visitor.rb:15:in `visit'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/visitors/visitor.rb:5:in `accept'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych/nodes/node.rb:46:in `yaml'
~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/psych.rb:243:in `dump'

我使用rbenv和ruby 1.9.3-p286。我的系统是Ubuntu 11.10。所需文件存在〜/ .rbenv / versions / 1.9.3-p286 / lib / ruby​​ / 1.9.1 / i686-linux / enc / trans / single_byte.so 。我在ruby 1.9.3-p194中遇到的相同错误。这个问题最奇怪的部分是不时发生此错误。

As you can see, I use rbenv and ruby 1.9.3-p286. My system is Ubuntu 11.10. Required file exists ~/.rbenv/versions/1.9.3-p286/lib/ruby/1.9.1/i686-linux/enc/trans/single_byte.so. The same error I encountered with ruby 1.9.3-p194. And the most weird part of this problem that this error occurs from time to time.

所以也许有人也遇到了这个问题，并且已经找到了解决方案？还是看起来更像是心理错误，我应该将其提交给其维护人员？

So maybe someone encountered this problem too and has already found a solution? Or does it seem more like a bug in psych and I should file it to its maintainer?

在此先感谢您的帮助！

编辑：该问题与psych gem没有直接关系。这是红宝石设置异常的普遍问题。有关详细信息，请参见下面可接受的答案。

the problem isn't directrly related to psych gem. It's general problem with unusual ruby setup. See the accepted answer below for details.

推荐答案

这是否发生在开发环境的舒适范围内？如果是这样，我会考虑在 pry-rescue 的 Pry.rescue中运行…结束块并戳

Is this happening within the cozy confines of your development environment? If so, I'd consider running it under pry-rescue's Pry.rescue do … end block and poking around while there.

我怀疑数据有差异。此树中是否有意涉及任何非ASCII？您可以使用类似这样的东西来查找它：

I suspect a data difference. Is there any non-ASCII intentionally involved in this tree? You could hunt it down with something like this:

ruby -e 'Dir["**/*.yml"].each{|e| File.read(e)[/[^\x0-\x7f]/] and puts e}' 

如下所示，rbenv安装与其他用户共享，因此请确保在进行任何更改后重做权限：

As you indicated below, the rbenv installation is shared with other users, so be sure to redo the permissions upon any change:

 chmod a+r -R ~/.rbenv/

或者创建一个共享组，例如 src ，然后：

Or perhaps create a shared group, such as src, then:

 chgrp src ~/.rbenv && chmod g+r -R ~/.rbenv

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