另一个:未初始化常量Rake::DSL

Question

输出如下：

rake aborted!
uninitialized constant Rake::DSL
/Users/marclipovsky/Sites/sat-7/app/Rakefile:6
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `load'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `raw_load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2017:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2016:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2000:in `run'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:1998:in `run'
/usr/bin/rake:31

这是我的耙文件：

require File.expand_path('../config/application', __FILE__)
require 'rake'
include Rake::DSL

App::Application.load_tasks

甚至不知道该看什么或者从哪里开始。任何帮助都是非常感谢的。谢谢!

更新： Rake命令现在可以工作了，但是在它运行命令之前，我仍然会得到这样的命令：

/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/file_utils.rb:10: warning: already initialized constant RUBY
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/file_utils.rb:84: warning: already initialized constant LN_SUPPORTED

Answer 1

有像Ruby on Rails and Rake problems: uninitialized constant Rake::DSL和uninitialized constant Rake::DSL in Ruby Gem这样的答案。我会先试试这个：

# [...]
require 'rake/dsl_definition'
require 'rake'
# [...]

如果没有完全修复它，您可能可以将gem 'rake', '>=0.9.2'放在Gemfile中，然后执行bundle update，最后运行bundle exec rake db:migrate。

Answer 2

对我起作用的是从我的系统中删除旧版本的rake。我跑完之后：

sudo gem uninstall rake -v 0.8.7

我不再看到这样的错误：

/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/file_utils.rb:10: warning: already initialized constant RUBY
/Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/file_utils.rb:84: warning: already initialized constant LN_SUPPORTED
WARNING: Global access to Rake DSL methods is deprecated.  Please include
...  Rake::DSL into classes and modules which use the Rake DSL methods.
WARNING: DSL method Rake::TestTask#ruby called at /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `ruby'
WARNING: Global access to Rake DSL methods is deprecated.  Please include
...  Rake::DSL into classes and modules which use the Rake DSL methods.
WARNING: DSL method Object#ruby called at /Library/Ruby/Gems/1.8/gems/rake-0.9.2/lib/rake/file_utils_ext.rb:36:in `ruby'

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