在新机器上,使用Windows的1-click安装程序安装ruby.安装了rails 2.3.2和所有相关的gem,然后我安装了sqlite3二进制文件(进入c:\ ruby\bin文件夹).最后我做了gem install sqlite3-ruby -v=1.2.3(这显然是与Windows一起使用的最新版本)
运行时rake db:migrate或在运行时触摸任何ActiveRecord对象时会发生此错误.
错误如下所示:
** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate rake aborted! **uninitialized constant Encoding** <----
任何帮助解决此错误将不胜感激!
跟踪:
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:443:in `load_missing_constant'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:80:in `const_missing'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:92:in `const_missing'
C:/Ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.3/lib/sqlite3/encoding.rb:9:in `find'
C:/Ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.3/lib/sqlite3/database.rb:69:in `initialize'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:13:in `new'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:13:in `sqlite3_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout'
C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve_connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/migration.rb:435:in `initialize'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/migration.rb:400:in `new'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/migration.rb:400:in `up'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/migration.rb:383:in `migrate'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/tasks/databases.rake:116
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'
C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051: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
Luis Lavena.. 20
如果你看一下backtrace会注意到问题不是sqlite3-ruby而是你安装的另一个gem:
C:/Ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.3/lib/sqlite3/encoding.rb:9:in `find' C:/Ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.3/lib/sqlite3/database.rb:69:in `initialize'
请卸载sqlite3 gem(gem uninstall sqlite3),因为它似乎干扰了加载机制.
sqlite3-ruby gem版本1.2.5已针对Windows进行了更新,应该可以开箱即用.
我建议阅读替换One-Click的新RubyInstaller教程:
教程
并且还安装了最新的RC1版本,而不是从这里一键式
希望这可以帮助.
如果你看一下backtrace会注意到问题不是sqlite3-ruby而是你安装的另一个gem:
C:/Ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.3/lib/sqlite3/encoding.rb:9:in `find' C:/Ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.3/lib/sqlite3/database.rb:69:in `initialize'
请卸载sqlite3 gem(gem uninstall sqlite3),因为它似乎干扰了加载机制.
sqlite3-ruby gem版本1.2.5已针对Windows进行了更新,应该可以开箱即用.
我建议阅读替换One-Click的新RubyInstaller教程:
教程
并且还安装了最新的RC1版本,而不是从这里一键式
希望这可以帮助.
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