未初始化的常量Psych :: Syck on gem install

Question

我把一个宝石推到了rubygems.org,当我做'宝石安装(宝石)'我得到这个错误:

ERROR:  While executing gem ... (NameError)
uninitialized constant Psych::Syck

我可以做一个'gem build(gem).gemspec'来生成一个本地gem,然后gem install(gem).gem并且安装得很好.我也可以将gem放入我的Rails'应用程序的Gemfile中,并指向Github repo,这也可以.我已经尝试安装gem(来自rubygems.org的多台计算机上,他们都得到了相同的错误.

我不知道从rubygems.org完成安装失败的原因是什么,但是当我在本地生成它时却没有.我正在使用珠宝商将宝石推到rubygems.org.

Answer 1

我得到的具体错误是:uninitialized constant Psych::Syck (NameError)在进行捆绑安装时.

安装simplecov(awesome code coverage tool)版本0.5.0时发生了这种情况.在Ubuntu 11.04中工作并使用RVM.

修正了问题 gem update --system

这会更新rubygems并产生以下输出:

Updating rubygems-update
Fetching: rubygems-update-1.8.10.gem (100%)
Successfully installed rubygems-update-1.8.10
Installing RubyGems 1.8.10
RubyGems 1.8.10 installed

== 1.8.10 / 2011-08-25

RubyGems 1.8.10 contains a security fix that prevents malicious gems from
executing code when their specification is loaded.  See
https://github.com/rubygems/rubygems/pull/165 for details.

* 5 bug fixes:

* RubyGems escapes strings in ruby-format specs using #dump instead of #to_s
  and %q to prevent code injection.  Issue #165 by Postmodern
* RubyGems attempt to activate the psych gem now to obtain bugfixes from
  psych.
* Gem.dir has been restored to the front of Gem.path.  Fixes remaining
  problem with Issue #115
* Fixed Syck DefaultKey infecting ruby-format specifications.
* `gem uninstall a b` no longer stops if gem "a" is not installed.


------------------------------------------------------------------------------

RubyGems installed the following executables:
    /home/baller/.rvm/rubies/ruby-1.9.2-p180/bin/gem

RubyGems system software updated

Answer 2

看来Syck有问题。请参阅此处：
Rails 3.1 on Ubuntu 11.04 via RVM - 未初始化的常量 Psych::Syck

这里：
http ://rubyforge.org/tracker/?group_id=126&atid=575&func=detail&aid=29163

并建议此处修复：
https ://github.com/rubygems/rubygems/pull/57