Question

我是Ruby on Rails的新手，并创建了一个新的环境和我的第一次迁移。迁移看起来像这样：

=============================================== ==========================

class CreateUsers < ActiveRecord::Migration
  def up
    create_table :users do |t|
      t.string "first_name", :limit => 25
      t.string "last_name", :limit => 50
      t.string "email", :default =>"", :null =>false
      t.string "password", :limit => 40

      t.timestamps
    end
  end

  def down
    drop_table :users
  end
end

=============================================== ========================

我保存它并尝试使用跟踪运行rake，我收到以下错误。

=============================================== ========================

$ rake db:migrate --trace
rake aborted!
NameError: undefined local variable or method `rake' for main:Object
/home/ubuntu/workspace/Rakefile:1:in `<top (required)>'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/rake_module.rb:28:in `load'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/rake_module.rb:28:in `load_rakefile'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-    10.4.2/lib/rake/application.rb:689:in `raw_load_rakefile'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/application.rb:94:in `block in load_rakefile'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/application.rb:176:in `standard_exception_handling'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/application.rb:93:in `load_rakefile'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/application.rb:77:in `block in run'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/application.rb:176:in `standard_exception_handling'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/lib/rake/application.rb:75:in `run'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rake-10.4.2/bin/rake:33:in `<top (required)>'
/usr/local/rvm/gems/ruby-2.1.5@rails4/bin/rake:23:in `load'
/usr/local/rvm/gems/ruby-2.1.5@rails4/bin/rake:23:in `<main>'

我用Google搜索并搜索了堆栈溢出并且没有更明智。

感谢您的帮助。

Answer 1

已解决：我创建了一个新环境并比较了Rakefile，发现我无意中添加了一个＆＃34; RAKE＆＃34;在我删除的文件的顶部。一切都解决了。 -

Ruby on Rails - Rake错误 - NameError：未定义的局部变量或方法`rake'for main：Object

1 个答案: