Rails 3.0 &Ruby 1.9.2rc:Rake 命令返回“已经初始化的常量"&堆栈级别太深错误.有任何想法吗 [英] Rails 3.0 & Ruby 1.9.2rc: Rake commands return 'already initialized constant' & stack level too deep errors. Any ideas

问题描述

我正在尝试运行 Rails 3 beta 4 &Ubuntu 10.04 上的 Ruby 1.9.2rc.它最初有效，但在完成我的第一个 bundle install/package 之后，我现在在所有 rails 项目中遇到以下错误.即使是基本的rails new testproject"后跟 rake 也会显示错误消息.

I'm trying to run Rails 3 beta 4 & Ruby 1.9.2rc on Ubuntu 10.04. It worked initially, but after doing my first bundle install/package, I now get the following errors in all rails projects. Even a basic 'rails new testproject' followed by a rake brings up the error messages.

简而言之，我被难住了.任何有关可能导致这种情况的帮助将不胜感激.

In short, I'm stumped. Any help regarding what could be causing this would be very appreciated.

我注意到的唯一一件事——可能相关也可能无关——是 ~/.bundle 文件中的目录是 ruby​​/1.9.1.我的机器上没有安装 1.9.1 - 只有 1.9.2rc.ruby -v 带回 1.9.2

The only thing I noticed - which may or may not be relevant - is that the directory in the ~/.bundle files is ruby/1.9.1. 1.9.1 is not installed on my machine - only 1.9.2rc. ruby -v brings back 1.9.2

(in /home/john/Websites/sandbox/testerino)
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:32: warning: already initialized constant RAKEVERSION
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake/alt_system.rb:32: warning: already initialized constant WINDOWS
WARNING: Possible conflict with Rake extension: String#ext already exists
WARNING: Possible conflict with Rake extension: String#pathmap already exists
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:404: warning: already initialized constant EMPTY_TASK_ARGS
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:452: warning: already initialized constant EMPTY
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:960: warning: already initialized constant RUBY_EXT
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:964: warning: already initialized constant RUBY
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1033: warning: already initialized constant LN_SUPPORTED
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1242: warning: already initialized constant ARRAY_METHODS
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1245: warning: already initialized constant MUST_DEFINE
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1249: warning: already initialized constant MUST_NOT_DEFINE
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1253: warning: already initialized constant SPECIAL_RETURN
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1259: warning: already initialized constant DELEGATING_METHODS
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1569: warning: already initialized constant DEFAULT_IGNORE_PATTERNS
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1575: warning: already initialized constant DEFAULT_IGNORE_PROCS
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1612: warning: already initialized constant FileList
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1638: warning: already initialized constant EARLY
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1968: warning: already initialized constant DEFAULT_RAKEFILES
rake aborted!
stack level too deep

推荐答案

恐怕更简单的解决方案是运行此命令而不是 rake db:migrate

I'm afraid the easier solution is running this command instead of rake db:migrate

bundle exec rake db:migrate

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