錯誤在共享服務器與MySQL

Question

我試圖與MySQL的共享主機數據庫NIM在你的Gemfile收到此錯誤

/!\ FAILSAFE /!\ Sun Jul 29 09:54:01 +0530 2012 
    Status: 500 Internal Server Error 
    no such file to load -- sqlite3 
    /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' 
    /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' 
    /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:184:in `require' 
    /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/core_ext/kernel/requires.rb:7:in `require_library_or_gem' 
    /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings' 
    /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/core_ext/kernel/requires.rb:5:in `require_library_or_gem' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/sqlite3_adapter.rb:10:in `sqlite3_connection' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout' 
    /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve_connection' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve_connection' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:9:in `cache' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/query_cache.rb:28:in `call' 
    /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/string_coercion.rb:25:in `call' 
    /usr/lib/ruby/gems/1.8/gems/rack-1.1.2/lib/rack/head.rb:9:in `call' 
    /usr/lib/ruby/gems/1.8/gems/rack-1.1.2/lib/rack/methodoverride.rb:24:in `call' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/params_parser.rb:15:in `call' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/session/cookie_store.rb:99:in `call' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/failsafe.rb:26:in `call' 
    /usr/lib/ruby/gems/1.8/gems/rack-1.1.2/lib/rack/lock.rb:11:in `call' 
    /usr/lib/ruby/gems/1.8/gems/rack-1.1.2/lib/rack/lock.rb:11:in `synchronize' 
    /usr/lib/ruby/gems/1.8/gems/rack-1.1.2/lib/rack/lock.rb:11:in `call' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:106:in `call' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/cgi_process.rb:44:in `dispatch_cgi' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:101:in `dispatch_cgi' 
    /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.14/lib/action_controller/dispatcher.rb:27:in `dispatch' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:76:in `process' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `synchronize' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `process' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:159:in `process_client' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:158:in `each' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:158:in `process_client' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `run' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `initialize' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `new' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:285:in `run' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:268:in `initialize' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:268:in `new' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel.rb:268:in `run' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:282:in `run' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:281:in `each' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:281:in `run' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:128:in `run' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/command.rb:212:in `run' 
    /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281 
    /usr/bin/mongrel_rails:19:in `load' 
    /usr/bin/mongrel_rails:19 

Answer 1

你應該把sqlite的一個開發小組，並添加MySQL部署ROR部署Rails應用程序寶石到生產組。另外你的database.yml應該有你的mysql服務器的配置。

group :development, :test do 
    gem 'sqlite3' 
end 

group :production do 
    gem 'mysql2' 
end 

另外不要忘記運行bundle install。而且你還應該在兩種環境中都有相同的數據庫，所以當你稍後對某些錯誤感到驚訝時，你不會有驚喜。