Rails g scaffold 用户邮箱不是 working.Os Linux
Rails g scaffold User email not working.Os Linux
卡在这里我很客气。
调用 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 loadRails.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块（2级）在'
来自 /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: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'
来自 /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:45:in 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每个'
来自 /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:44:in 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 '
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5.1/lib/active_record/base.rb:26:in <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?'
来自 /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'
来自 /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:ininvoke_command'
来自 /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:ineach'
来自 /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:ininvoke_all'
来自 /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:ininvoke'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/group.rb:277:in 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:inwith_padding'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/group.rb:266: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/group.rb:133:in_invoke_from_option_orm'
来自 /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:ininvoke_command'
来自 /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:ineach'
来自 /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:ininvoke_all'
来自 /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/base.rb:440:instart'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/generators.rb:157:in invoke'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/generate.rb:13:in '
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in require'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in阻止要求'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:in load_dependency'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in要求'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:123:in require_command!'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:130:in generate_or_destroy'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:50:in generate'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:39:in run_command!'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands.rb:17:in <top (required)>'
from bin/rails:4:in要求'
来自 bin/rails:4:in `'
关于 Linux OS，我建议使用 RVM 而不是 RBenv，而且它很容易安装。以下是您需要执行的操作：
确保安装 curl
sudo apt-get install curl
访问RVM主页
通过复制和粘贴添加密钥：
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
然后在 rails 4 中使用以下命令：
\curl -sSL https://get.rvm.io | bash -s stable --rails
安装完成后执行此操作：
/home/<whatever your username is>/.rvm/scripts/rvm
rvm requirements
检查以确保您使用以下命令安装了 ruby、ruby gem 和 rails：
ruby -v && gem -v && rails -v
您现在应该能够使用以下命令制作简单的 rails 应用程序：
rails new testapp
错误提示您没有 database.yml 文件
Could not load database configuration. No such file - ["config/database.yml"]
请检查您的 config 目录。你能看到里面的 database.yml 文件吗？
卡在这里我很客气。
调用 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 loadRails.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块（2级）在'
来自 /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: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'
来自 /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:45:in 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每个'
来自 /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:44:in 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 '
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5.1/lib/active_record/base.rb:26:in <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?'
来自 /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'
来自 /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:ininvoke_command'
来自 /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:ineach'
来自 /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:ininvoke_all'
来自 /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:ininvoke'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/group.rb:277:in 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:inwith_padding'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/group.rb:266: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/group.rb:133:in_invoke_from_option_orm'
来自 /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:ininvoke_command'
来自 /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:ineach'
来自 /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:ininvoke_all'
来自 /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/base.rb:440:instart'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/generators.rb:157:in invoke'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/generate.rb:13:in '
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in require'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in阻止要求'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:in load_dependency'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in要求'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:123:in require_command!'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:130:in generate_or_destroy'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:50:in generate'
from /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:39:in run_command!'
来自 /home/frank/.rbenv/versions/2.2.4/lib/ruby/gems/2.2.0/gems/railties-4.2.5.1/lib/rails/commands.rb:17:in <top (required)>'
from bin/rails:4:in要求'
来自 bin/rails:4:in `'
关于 Linux OS，我建议使用 RVM 而不是 RBenv，而且它很容易安装。以下是您需要执行的操作：
确保安装 curl
sudo apt-get install curl
通过复制和粘贴添加密钥：
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
然后在 rails 4 中使用以下命令：
\curl -sSL https://get.rvm.io | bash -s stable --rails
安装完成后执行此操作：
/home/<whatever your username is>/.rvm/scripts/rvm
rvm requirements
检查以确保您使用以下命令安装了 ruby、ruby gem 和 rails：
ruby -v && gem -v && rails -v
您现在应该能够使用以下命令制作简单的 rails 应用程序：
rails new testapp
错误提示您没有 database.yml 文件
Could not load database configuration. No such file - ["config/database.yml"]
请检查您的 config 目录。你能看到里面的 database.yml 文件吗？