Rails - rake db：创建错误

Question

我尝试运行 rake db:create 来创建 mysql 数据库，但出现错误

$ rake db:create
rake aborted!
undefined method `task' for #<Sharebox::Application:0x0000010085a010>

我运行 --trace 并获取信息

/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/railties-3.0.7/lib/rails/application.rb:215:in `initialize_tasks'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/railties-3.0.7/lib/rails/application.rb:139:in `load_tasks'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/railties-3.0.7/lib/rails/application.rb:77:in `method_missing'
/Users/lucasdobbins/rails_projects/sharebox/Rakefile:7:in `<top (required)>'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/rake_module.rb:25:in `load'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/rake_module.rb:25:in `load_rakefile'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/application.rb:495:in `raw_load_rakefile'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/application.rb:78:in `block in load_rakefile'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/application.rb:129:in `standard_exception_handling'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/application.rb:77:in `load_rakefile'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/application.rb:61:in `block in run'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/application.rb:129:in `standard_exception_handling'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/lib/rake/application.rb:59:in `run'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/gems/rake-0.9.0/bin/rake:31:in `<top (required)>'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/bin/rake:19:in `load'
/Users/lucasdobbins/.rvm/gems/ruby-1.9.2-head/bin/rake:19:in `<main>'

这是我的 database.yml 文件

development:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: sharebox_development
  pool: 5
  username: root
  password:
  host: localhost

我重新安装了 ruby​​、rails 和 mysql，但仍然出现相同的错误 任何帮助将不胜感激。干杯

Answer 1

您应该在 GemFile 中精确显示您的 rake 版本。

Rake 0.9 刚刚发布，但破坏了 Rails。

这是 dhh 的推文：

Rake 0.9，昨天发布，破坏了 Rails（和其他） 。当我们等待修复时，您需要在 Gemfile 中包含 gem 'rake', '0.8.7'。

尝试一下吗？

编辑：另外，如果你真的需要 Rake 0.9 而不是 Rake 0.8.7。也许这种修复对你有用。