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我更新了我的軌道寶石2.3.5，但我一直在運行數據庫時收到此錯誤：種子：不能使用DB：種子在軌
$ 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具有正確的軌道上版這一點，我也跑耙rails:update。我能做什麼？
檢查以確保您沒有使用商用版本的導軌。你在使用版本控制嗎？你意外改變了分支？我一直都這樣做。 – stephenmurdoch 2010-03-29 11:12:32
什麼ORM和數據庫您使用的？我發現這是有沒有我已經運行，但我仍然得到同樣的錯誤在我的Gemfile – 2012-08-05 19:51:43