Rails数据库迁移错误

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我想开始使用ror，但这个问题似乎无法解决。我知道有很多关于这个数据库错误的线程，但没有一个解决方案似乎可以解决。我现在整个下午都在搜索论坛，但都没有成功。Rails数据库迁移错误

我基本上只是执行从教科书的首要任务，这是如下：我创建了一个新的回报率的项目（视窗10，sqlite3的）与

rails new depot

然后我在这个项目中创建脚手架下面的代码：

rails generate scaffold Product title:string description:text image_url:string price:decimal

，当我测试应用程序，我得到了分贝：迁移错误。我试过rake db:migrate,db:rollback,db:drop然后db:create，我检查了迁移文件的错误，但没有任何工作。

我认为解决方案应该非常简单，因为应用程序应该像它处于这种状态一样不复杂，但我无法得到它出现的秘密。

迁移正在进行中。要解决此问题，运行：

bin/rails db:migrate RAILS_ENV=test 

    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/migration.rb:586:in `load_schema_if_pending!' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/migration.rb:592:in `block in maintain_test_schema!' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/migration.rb:823:in `suppress_messages' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/migration.rb:597:in `method_missing' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/migration.rb:592:in `maintain_test_schema!' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.1/lib/rails/test_help.rb:15:in `<top (required)>' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require' 
    from C:/Users/Flori/Desktop/bsp/test/test_helper.rb:3:in `<top (required)>' 
    from C:/Users/Flori/Desktop/bsp/test/controllers/products_controller_test.rb:1:in `require' 
    from C:/Users/Flori/Desktop/bsp/test/controllers/products_controller_test.rb:1:in `<top (required)>' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.1/lib/rails/test_unit/test_requirer.rb:11:in `require' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.1/lib/rails/test_unit/test_requirer.rb:11:in `block in require_files' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.1/lib/rails/test_unit/test_requirer.rb:10:in `each' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.1/lib/rails/test_unit/test_requirer.rb:10:in `require_files' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.1/lib/rails/test_unit/minitest_plugin.rb:86:in `plugin_rails_init' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/minitest-5.10.1/lib/minitest.rb:80:in `block in init_plugins' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/minitest-5.10.1/lib/minitest.rb:78:in `each' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/minitest-5.10.1/lib/minitest.rb:78:in `init_plugins' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/minitest-5.10.1/lib/minitest.rb:129:in `run' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-5.0.1/lib/rails/test_unit/minitest_plugin.rb:73:in `run' 
    from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/minitest-5.10.1/lib/minitest.rb:62:in `block in autorun'

来源

2016-12-25 Flr919

你什么错误，当你运行'耙分贝这必须解决您的问题：migrate' ？ –

总是将堆栈跟踪包含在这类问题中。 –

当我运行rake db时，我没有得到任何错误：迁移。迁移成功我认为。 – Flr919

服务器的交换机，然后运行

rake db:drop db:create db:migrate

来源

2016-12-25 15:01:26 Che

Rails数据库迁移错误

回答

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