Rake 错误:堆栈级别太深 [英] Rake error: Stack level too deep

问题描述

我知道这是一个常见问题，但我刚刚开始了一个使用新 Rails 3.1.0 和 Ruby 1.9.2 p290 的项目

I know this is a common question, but I just started a project with the new Rails 3.1.0 and Ruby 1.9.2 p290

在我的第一次迁移中，我已经遇到了这个错误，我不知道为什么.

On my first migrations I had already this error and I am not sure why.

Aurelien$ rake db:migrate --trace
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/version.rb:4: warning: already initialized constant MAJOR
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/version.rb:5: warning: already initialized constant MINOR
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/version.rb:6: warning: already initialized constant BUILD
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/version.rb:3: warning: already initialized constant NUMBERS
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/version.rb:9: warning: already initialized constant VERSION
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake.rb:26: warning: already initialized constant RAKEVERSION
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/early_time.rb:17: warning: already initialized constant EARLY
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/alt_system.rb:32: warning: already initialized constant WINDOWS
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/application.rb:28: warning: already initialized constant DEFAULT_RAKEFILES
WARNING: Possible conflict with Rake extension: String#ext already exists
WARNING: Possible conflict with Rake extension: String#pathmap already exists
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/task_arguments.rb:73: warning: already initialized constant EMPTY_TASK_ARGS
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/invocation_chain.rb:49: warning: already initialized constant EMPTY
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_utils.rb:10: warning: already initialized constant RUBY
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_utils.rb:84: warning: already initialized constant LN_SUPPORTED
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/dsl_definition.rb:143: warning: already initialized constant Commands
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_list.rb:44: warning: already initialized constant ARRAY_METHODS
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_list.rb:47: warning: already initialized constant MUST_DEFINE
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_list.rb:51: warning: already initialized constant MUST_NOT_DEFINE
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_list.rb:55: warning: already initialized constant SPECIAL_RETURN
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_list.rb:61: warning: already initialized constant DELEGATING_METHODS
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_list.rb:364: warning: already initialized constant DEFAULT_IGNORE_PATTERNS
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/file_list.rb:370: warning: already initialized constant DEFAULT_IGNORE_PROCS
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake.rb:64: warning: already initialized constant FileList
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake.rb:65: warning: already initialized constant RakeFileUtils
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
rake aborted!
stack level too deep
/Users/Aurelien/.rvm/gems/ruby-1.9.2-p290@rails3/gems/rake-0.9.2/lib/rake/task.rb:162

我还删除了 gems 并使用 db:reset 重新安装来源'http://rubygems.org'

I also removed the gems and re-tyring with db:reset source 'http://rubygems.org'

gem 'rails', '3.1.0'

# Bundle edge Rails instead:
# gem 'rails',     :git => 'git://github.com/rails/rails.git'

gem 'sqlite3'

#gem "rspec-rails", :group => [:test, :development]

group :test do
  #gem "factory_girl_rails"
  #gem "capybara"
  #gem "guard-rspec"
  #gem "spork", "> 0.9.0.rc"
  #gem "guard-spork"
end

rake 命令与 bundle exec 一起使用，但最好避免使用它.

The rake commands work with bundle exec, but it would be nice to avoid using it.

预先感谢您提供提示和答案.

Thank you in advance for tips and answers.

奥勒连

推荐答案

你应该在你的 Gemfile 中特别添加 Rake version >= 0.9.2！某些 Rails 3 版本存在一个错误，当您使用较旧的 Rake 版本时，您会看到类似这样的奇怪错误.

You should specifically add Rake version >= 0.9.2 in your Gemfile! There was a bug with some Rails 3 versions where you would see strange errors like this when you use an older Rake version.

在您的 Gemfile 中:

In your Gemfile:

gem 'rake' , '>= 0.9.2'

我还建议您专门为您的应用程序创建一个新的 gemset，例如

I'd also recommend you create a new gemset specifically for your application, e.g.

rvm gemset create yourproject
rvm gemset use yourproject

或:

rvm gemset use yourproject --default

对于新的 gemset，您可能需要手动添加gem install rake"，然后运行bundle install"

for the new gemset, you might have to add "gem install rake" manually, then run "bundle install"

除了使用 Gemfile 之外，还使用单独的 gemset 是保持项目中的 gem 版本稳定并与其他项目分离的最佳方式.

Using a separate gemset in addition to using your Gemfile is the best way to keep your gem versions in your project stable, and decoupled from other projects.

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