初学ruby on rails 按照 ruby on rails 学习第一个例子 安装了ruby 并且安装了rails.然后rails mybook 创建了一个工程。进入mybook 输入命令ruby script/server 启动服务,没有报错。
打开链接http://127.0.0.1:3000 出现错误页面
日志错误:
/!\ FAILSAFE /!\ Thu Mar 19 16:48:05 +0800 2009
Status: 500 Internal Server Error
no such file to load -- sqlite3
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require'
require'
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in require'
new_constants_in'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in require'
require_library_or_gem'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/core_ext/kernel/requires.rb:7:in
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/core_ext/kernel/reporting.rb:11:in silence_warnings'
require_library_or_gem'
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/core_ext/kernel/requires.rb:5:in
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:10:in sqlite3_connection'
send'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in
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'
checkout_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
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in checkout'
loop'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in checkout'
synchronize'
C:/Ruby/lib/ruby/1.8/monitor.rb:242:in
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in checkout'
connection'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in
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'
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
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in connection'
cache'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/query_cache.rb:9:in
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/query_cache.rb:28:in call'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/head.rb:9:in call'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/methodoverride.rb:24:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/params_parser.rb:15:in call'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/rewindable_input.rb:25:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/session/cookie_store.rb:93:in call'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/reloader.rb:9:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/failsafe.rb:11:in call'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in synchronize'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:106:in call'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/rack/static.rb:31:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:46:in call'
each'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:40:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:40:in call'
call'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/rack/log_tailer.rb:17:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/content_length.rb:13:in call'
service'
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/webrick.rb:46:in
C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in service'
run'
C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in
C:/Ruby/lib/ruby/1.8/webrick/server.rb:173:in start_thread'
start'
C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in
C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in start_thread'
start'
C:/Ruby/lib/ruby/1.8/webrick/server.rb:95:in
C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in each'
start'
C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in
C:/Ruby/lib/ruby/1.8/webrick/server.rb:23:in start'
start'
C:/Ruby/lib/ruby/1.8/webrick/server.rb:82:in
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/webrick.rb:13:in run'
gem_original_require'
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/commands/server.rb:111
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
script/server:3