SQLite3和Ruby - 未初始化的常量SQLite3 ... API

时间：2009-12-02 10:46:02

标签： ruby netbeans sqlite

我在Windows下使用NetBeans 6.7.1中的Ruby on Rails，我正在尝试使用SQLite3。

我已经安装了sqlite3-ruby的windows版本，我在NetBeans6.7.1＆gt; ruby​​2＆gt; jruby-1.2.0＆gt; bin

中放置了sqlite3.def，sqlite3.dll和sqlite3.exe

当我尝试运行db：create rake任务时，我得到如下所示的错误和跟踪。

有人可以帮忙吗？

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}

2 个答案:

答案 0 :(得分：2)

您还可以通过安装jdbc等效项（jdbc-sqlite3 activerecord-jdbcsqlite3-adapter）将您正在使用的数据库适配器更改为jdbc-sqlite3，您应该可以从netbeans gem manager执行此操作。

答案 1 :(得分：1)

到目前为止，有不同的Ruby实现，其中一个是JRuby。

NetBeans捆绑了JRuby，它基于Java虚拟机（JVM）并由其提供支持。

SQLite3 / Ruby绑定与JVM不兼容，这些绑定需要原始和本机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。

您可以在Rails here

中找到有关使用较新的1.8.6或1.9.1的教程

我建议您从here安装1.8.6版安装程序（Release Candidate 1）

希望这有帮助。

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