无法在 Rails 中使用 db:seed

Question

我将 Rails gem 更新到 2.3.5，但在运行 db:seed 时不断收到此错误：

$ rake db:seed --trace
(in c:/Documents and Settings/Owner/workspace/thepatstudio)
rake aborted!
Don't know how to build task 'db:seed'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1728:in `[]'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2050:in `invoke_task'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
c:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31
c:/Ruby/bin/rake:19:in `load'
c:/Ruby/bin/rake:19

~/workspace/thepatstudio (master)
    $ rails --version
    Rails 2.3.5

我的environment.rb 上有正确的 Rails 版本，并且我还运行了 rake rails:update。我能做些什么？

Answer 1

更新 gem 后，您是否启动了 rake 任务来更新您的环境？

rake rails:update