ruby on rails 错误 rake db:create [英] ruby on rails error rake db:create

问题描述

我一直在 rails 上使用 ruby​​ 没问题，现在每次运行 rake db:create 时突然出现以下错误:

I have been using ruby on rails fine no problem, now suddenly every time I run rake db:create I get the following errors:

C:\>cd xampp

C:\xampp>cd htdocs

C:\xampp\htdocs>cd what

C:\xampp\htdocs\what>rake db:create
rake aborted!
undefined method `task' for #<What::Application:0x20eb1e0>

(See full trace by running task with --trace)

C:\xampp\htdocs\what>

有什么帮助吗???

这是我所有的 cmd

Here is all my cmd

   C:\xampp\htdocs\comeon>rake db:create --trace
rake aborted!
undefined method `task' for #<Comeon::Application:0x211fb30>
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.7/lib/rails/application.rb:215:
in `initialize_tasks'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.7/lib/rails/application.rb:139:
in `load_tasks'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.7/lib/rails/application.rb:77:i
n `method_missing'
C:/xampp/htdocs/comeon/Rakefile:7:in `<top (required)>'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/rake_module.rb:25:in `lo
ad'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/rake_module.rb:25:in `lo
ad_rakefile'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/application.rb:495:in `r
aw_load_rakefile'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/application.rb:78:in `bl
ock in load_rakefile'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/application.rb:129:in `s
tandard_exception_handling'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/application.rb:77:in `lo
ad_rakefile'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/application.rb:61:in `bl
ock in run'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/application.rb:129:in `s
tandard_exception_handling'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/lib/rake/application.rb:59:in `ru
n'
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.9.0/bin/rake:31:in `<top (required)>'

C:/Ruby192/bin/rake:19:in `load'
C:/Ruby192/bin/rake:19:in `<main>'

推荐答案

这会对你有所帮助.

gem uninstall rake

gem install rake -v 0.8.7

如果问题仍然存在，卸载rake并使用

If Still the problem exists, uninstall rake and install using

gem uninstall rake
gem install rake

了解更多信息

使用 Rake 0.9 的未定义方法task".0

这篇关于ruby on rails 错误 rake db:create的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！