Ruby on rails heroku PostgreSQL数据库迁移错误

我尝试在heroku中迁移postgres数据库时出错。 首先我得到：

$ heroku run rake db:migrate --trace
rake aborted!
undefined method `find_by_name' for Gem::Specification:Class
/app/lib/tasks/auto_annotate_models.rake:22:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/depen                                        dencies.rb:245:in `load'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/depen                                        dencies.rb:245:in `block in load'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/depen                                        dencies.rb:236:in `load_dependency'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/depen                                        dencies.rb:245:in `load'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:425:in `b                                        lock in load_tasks'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:425:in `e                                        ach'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:425:in `l                                        oad_tasks'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/application.rb:145:                                        in `load_tasks'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/railtie/configurabl                                        e.rb:30:in `method_missing'
/app/Rakefile:7:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/rake_module.rb:25:in `lo                                        ad'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/rake_module.rb:25:in `lo                                        ad_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:583:in `r                                        aw_load_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:89:in `bl                                        ock in load_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:160:in `s                                        tandard_exception_handling'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:88:in `lo                                        ad_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:72:in `bl                                        ock in run'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:160:in `s                                        tandard_exception_handling'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:70:in `ru                                        n'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/bin/rake:33:in `<top (required)>'
/app/vendor/bundle/ruby/1.9.1/bin/rake:19:in `load'
/app/vendor/bundle/ruby/1.9.1/bin/rake:19:in `<main>'

$heroku运行rake数据库：迁移--跟踪
雷克流产了！
Gem:：Specification:类的未定义方法“按名称查找”
/app/lib/tasks/auto\u annotate\u models.rake:22:in`'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active\u support/depen dencies.rb:245:in'load'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active\u support/depen dencies.rb:245:in'block in load'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active\u support/depen dencies.rb:236:in'load\u dependencies'
/app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active\u support/depen dencies.rb:245:in'load'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:425:in'b lock in load_tasks'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:425:in'each'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:425:in'load_tasks'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/application.rb:145:in'load_tasks'
/app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/railtie/configurabl e.rb:30:in'method_missing'
/app/Rakefile:7:in`'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/rake_module.rb:25:in'lo ad'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/rake_module.rb:25:in'lo ad_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:583:in'r aw_load_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:89:in'block in load_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:160:in's standard_exception_handling'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:88:in'lo ad_rakefile'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:72:in'block in run'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:160:in's standard_exception_handling'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/lib/rake/application.rb:70:in'ru n'
/app/vendor/bundle/ruby/1.9.1/gems/rake-10.0.3/bin/rake:33:in`'
/app/vendor/bundle/ruby/1.9.1/bin/rake:19:in'load'
/app/vendor/bundle/ruby/1.9.1/bin/rake:19:in`'

---

发生了什么事？

您在迁移之前是否执行了heroku运行rake db:create？

您在迁移之前是否执行了heroku运行rake db:create？

我认为您应该发布您的文件。很难说是什么错了，我不明白这一点：“然后我在Gemfile中添加了ruby“1.9.3”，然后我得到了“文本蝙蝠侠的神圣墙！我认为默认情况下不再支持

find_by_name

或任何

find_by_uuxxxxx

。。。是吗？我想你应该把你的档案寄出去。很难说是什么错了，我不明白这一点：“然后我在Gemfile中添加了ruby“1.9.3”，然后我得到了“文本蝙蝠侠的神圣墙！我认为默认情况下不再支持

find_by_name

或任何

find_by_uuxxxxx

。。。是吗？试过了但没用。后来发现了问题。这是来自AnnotateGem的脚本，不确定这是旧脚本还是其他人在我正在处理的项目中添加的脚本。我已经删除了脚本，它现在正在工作。Thx.试过了，但没用。后来发现了问题。这是来自AnnotateGem的脚本，不确定这是旧脚本还是其他人在我正在处理的项目中添加的脚本。我已经删除了脚本，它现在正在工作。谢谢。