SQLite3和Ruby - 未初始化的常量SQLite3 ... API

Question

我在Windows下使用NetBeans 6.7.1中的Ruby on Rails，并试图使用SQLite3。

我已经安装了sqlite3的，红宝石的windows版本，我已经放在sqlite3.def，sqlite3.dll和sqlite3.exe在NetBeans6.7.1> ruby​​2> JRuby的1.2.0>斌

当我尝试运行db：create rake任务时，出现下面显示的错误和跟踪。

任何人都可以帮忙吗？

uninitialized constant SQLite3::Driver::Native::Driver::API 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:105:in `const_missing' 
C:/RubyGemsFolder/gems/sqlite3-ruby-1.2.5-x86-mswin32/lib/sqlite3/driver/native/driver.rb:76:in `open' 
C:/RubyGemsFolder/gems/sqlite3-ruby-1.2.5-x86-mswin32/lib/sqlite3/database.rb:76:in `initialize' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:13:in `sqlite3_connection' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/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:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/1.8/monitor.rb:191:in `mon_synchronize' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve_connection' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve_connection' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/tasks/databases.rake:43:in `create_database' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/tasks/databases.rake:31 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `call' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `execute' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `each' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `execute' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:in `invoke_with_call_chain' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/1.8/monitor.rb:191:in `mon_synchronize' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in `invoke' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2019:in `invoke_task' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `top_level' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `each' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `top_level' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `standard_exception_handling' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1991:in `top_level' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1970:in `run' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `standard_exception_handling' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1967:in `run' 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:31 
C:/Program Files/NetBeans 6.7.1/ruby2/jruby-1.2.0/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:19:in `load' 
C:\Program Files\NetBeans 6.7.1\ruby2\jruby-1.2.0\bin\rake:19 
Couldn't create database for {"pool"=>5, "adapter"=>"sqlite3", "database"=>"db/development.sqlite3", "timeout"=>5000} 

Answer 1

到目前为止，有不同的Ruby实现，其中之一是JRuby。

NetBeans捆绑了基于Java虚拟机（JVM）并由其支持的JRuby。 SQLite3/Ruby绑定与JVM不兼容，这些需要原始和本地Ruby实现，也称为MRI（Matz Ruby Implementation或C Ruby）。

请安装单独的Ruby版本，然后将解释器添加到NetBeans菜单。

你可以找到关于如何使用新的和Rails here

1.8.6或1.9.1的教程，我建议你从here

希望这有助于安装的安装程序（发行候选版本1）的1.8.6版本。

Answer 2

您还可以通过安装JDBC当量（jdbc-sqlite3activerecord-jdbcsqlite3-adapter），你应该能够从netbeans gem manager