我只是想嘗試新的框架帕德里諾。我按照給定的步驟here。 我被困在運行rake任務。 我使用Mysql作爲我的數據庫。我使用該命令創建了該項目。
padrino摹項目sample_blog -t早該-e HAML -c青菜-s jQuery的-d ActiveRecord的-a mysql的padrino摹管理帕德里諾與MySQL，耙失敗
我所有的依賴關係，從而，我也捆綁安裝，以確保它。 然後，當我運行rake任務時，出現此錯誤。
$ padrino耙AR：創建--trace
=>執行耙AR：創建--trace ...
**調用AR：創建（FIRST_TIME）
**調用環境（FIRST_TIME）
**執行環境
**執行ar：創建
rake中止！
未定義的方法[]' for nil:NilClass create_database」
/usr/lib/ruby/gems/1.8/gems/padrino-gen-0.9.14/lib/padrino-gen/padrino-tasks/activerecord.rb:56:in
/usr/lib/ruby/gems/1.8/gems/padrino-gen-0.9.14/lib/padrino-gen/padrino-tasks/activerecord.rb:31
的/ usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb：636：在call'執行'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib /rake.rb:631:in each'執行 '
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in invoke_with_call_chain'同步'
/usr/lib/ruby/1.8/monitor.rb:242:in
/usr/lib目錄/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in invoke_with_call_chain' invoke'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in
/usr/lib/ruby/gems/1.8/gem s/rake-0.8.7/lib/rake.rb：2051：在invoke_task' top_level'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in each' TOP_LEVEL '
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in standard_exception_handling' TOP_LEVEL'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in
/usr/lib/ruby/gems/1.8/gems /padrino-core-0.9.14/lib/padrino-core/cli/rake.rb:9:in init' rake'
/usr/lib/ruby/gems/1.8/gems/padrino-core-0.9.14/lib/padrino-core/cli/base.rb:50:in
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/托爾/ task.rb：33：send'運行 '
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/task.rb:33:in
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/invocation.rb:109:in invoke'呼叫'
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/invocation.rb:116:in
/usr/lib中/紅寶石/寶石/ 1.8 /寶石/雷神-0.13.4 /lib/thor/invocation.rb:116:in invoke' /usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor.rb:137:in start'
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/base.rb:378:in start' start'
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor.rb:124:in
/usr/lib/ruby/gems/1.8/gems/padrino-core-0.9.14/bin/padrino:24
的/ usr /斌/ padrino：19：在`負載」
的/ usr /斌/ padrino：19
$ padrino耙AR：遷移--trace =>執行瑞克AR：遷移--trace ...
**調用AR：遷移（FIRST_TIME）
**調用環境下t（first_time）
**執行環境
**執行ar：遷移
rake中止！
的ActiveRecord :: ConnectionNotEstablished
/home/deepak/.bundle/ruby/1.8/gems/activerecord- 2.3.8/lib中/ active_record/connection_adapters /抽象/ connection_pool.rb：326：在retrieve_connection' retrieve_connection」
/home/deepak/.bundle/ruby/1.8/gems/activerecord- 2.3.8/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in
/家/deepak/.bundle/ruby/1.8/gems/activerecord- 2.3.8/lib/active_record/connection_adapters/abstract/connection_specification.rb：115：in connection' initialize'
/home/deepak/.bundle/ruby/1.8/gems/activerecord-2.3.8/lib/active_record/migration.rb:440:in
/home/deepak/.bundle/ruby/1.8/ gems/activerecord-2.3.8/lib/active_record/migration.rb：401：在new'以上'
/home/deepak/.bundle/ruby/1.8/gems/activerecord-2.3.8/lib/active_record/migration.rb:401:in
/home/deepak/.bundle/ruby/1.8/gems/activerecord-2.3.8/lib/active_record/migration。 rb：383：在migrate'調用'
/usr/lib/ruby/gems/1.8/gems/padrino-gen-0.9.14/lib/padrino-gen/padrino-tasks/activerecord.rb:136
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in execute' each'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8 0.7/LIB/rake.rb：631：在execute' invoke_with_call_chain'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in
/usr/lib/ruby/1.8/monitor.rb:242:in synchronize' invoke_with_call_chain'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in
/usr/lib/ruby/gems/1.8/gems /rake-0.8.7/lib/rake.rb:583:in invoke' invoke_task'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in top_level'每個'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in top_level' standard_exception_handling'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in
/usr/lib /ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in top_level' init'
/usr/lib/ruby/gems/1.8/gems/padrino-core-0.9.14/lib/padrino-core/cli/rake.rb:9:in
/usr/lib/ruby/gems/1.8/gems/padrino-core-0.9.14/ lib/padrino-core/cli/base.rb：50：在rake'發送'
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/task.rb:33:in
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/task.rb:33:in run'調用 '
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/invocation.rb:109:in
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/invocation.rb:116:in call'調用'
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/invocation.rb:116:in
/usr/lib/ruby/gems/1.8 /gems/thor-0.13.4/lib/thor.rb:137:in start'開始」
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor/base.rb:378:in
/usr/lib/ruby/gems/1.8/gems/thor-0.13.4/lib/thor.rb:124：在start'加載'
/usr/lib/ruby/gems/1.8/gems/padrino-core-0.9.14/bin/padrino:24
/usr/bin/padrino:19:in
/usr/bin/padrino：19
可能是一個愚蠢的問題，但是你的mysql服務器啓動了嗎？ database.rb文件中的連接信息是否正確？ – craigp 2011-02-25 19:38:41