Rails g腳手架用戶電子郵件不工作.Os Linux

Question

我很好，如果卡在這裏。 invoke active_record /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/application/configuration.rb:110:in database_configuration': Cannot load來自/home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support的' 中的Rails.application.database_configuration : (RuntimeError) Could not load database configuration. No such file - ["config/database.yml"] from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5.1/lib/active_record/railtie.rb:117:in塊（2個級別） /lazy_load_hooks.rb:38:in instance_eval' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/lazy_load_hooks.rb:38:in execute_hook' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/lazy_load_hooks .rb：45：來自/home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/lazy_load_hooks.rb的每個'block in run_load_hooks' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/lazy_load_hooks.rb:44:in' ：44：來自/home/frank/.rbenv/versions/2.2的run_load_hooks' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5.1/lib/active_record/base.rb:315:in' 。 4/lib/ruby​​/gems/2.2.0/gems/activerecord-4.2.5.1/lib/active_record/base.rb：26：在<top (required)>' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/generators/named_base.rb:179:in pluralize_table_names？' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/generators/named_base.rb:119:in table_name' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5.1/lib/rails/generators/active_record/model/model_generator.rb:21:in create_migration_file' 從/home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/command.rb:27:in run' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in invoke_command」 從/home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in block in invoke_all' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in每個' from/home /frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in map' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in invoke_all' from/home/frank /.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/group.rb:232:in dispatch' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:115:in從/ home/frank /調用' 。 rbenv /版本/ 2.2.4/LIB /紅寶石/寶石/ 2.2.0 /寶石/日或-0.19.1/lib/thor/group.rb：277：在block in _invoke_for_class_method' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/shell.rb:68:in with_padding' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor- 0.19.1/lib/thor/group.rb：266：來自/home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19的_invoke_for_class_method' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/group.rb:133:in_invoke_from_option_orm' 。 1/lib/thor/command.rb：27：來自/home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/的run' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in invoke_command' lib/thor/invocation.rb：133：在block in invoke_all' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in中，每個' 來自/home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/ thor/invocation.rb：133：map' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:133:in invoke_all' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/ group.rb：232：在dispatch' from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/base.rb:440:in開始' m 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Answer 1

我推薦在Linux操作系統上使用RVM，而不是RBenv，而且它的安裝非常簡單。下面是你需要做什麼來：

確保安裝捲曲

sudo apt-get install curl 

然後參觀RVM的主頁在https://rvm.io/

通過複製添加鍵值和粘貼此：

gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 

然後在導軌4內用以下命令：

\curl -sSL https://get.rvm.io | bash -s stable --rails 

後安裝完成此操作：

/home/<whatever your username is>/.rvm/scripts/rvm 
rvm requirements 

檢查，以確保你有紅寶石，紅寶石的寶石，並用以下命令安裝導軌：

ruby -v && gem -v && rails -v 

您現在應該能夠進行簡單的Rails應用程序使用下面的命令：

rails new testapp 

Answer 2

錯誤是說你沒有database.yml文件

Could not load database configuration. No such file - ["config/database.yml"] 

請檢查您的config目錄。你能看到database.yml文件嗎？