安装活动管理时出现问题 - Rails 3.0.3 - 未初始化的常量 Formtastic::SemanticFormHelper
我正在尝试将 activeadmin 添加到我的 Rails 3.0.3 应用程序中。
我按照此处的说明进行操作
时，当我运行 - rake db:migrate 时，出现以下错误 -
rake aborted!
uninitialized constant Formtastic::SemanticFormHelper
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:167:in `eval'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/resource_controller.rb:1:in `<top (required)>'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/dashboards/dashboard_controller.rb:3:in `<module:Dashboards>'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/dashboards/dashboard_controller.rb:2:in `<module:ActiveAdmin>'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/dashboards/dashboard_controller.rb:1:in `<top (required)>'
(eval):1:in `generate_dashboard_controller'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:167:in `eval'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:167:in `generate_dashboard_controller'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:38:in `initialize'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:147:in `new'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:147:in `find_or_create_namespace'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:282:in `load_default_namespace'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:188:in `load!'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:212:in `routes'
I'm trying to add activeadmin to my rails 3.0.3 app.
I'm following the instructions here
When I run - rake db:migrate I get the following error -
rake aborted!
uninitialized constant Formtastic::SemanticFormHelper
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:167:in `eval'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/resource_controller.rb:1:in `<top (required)>'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/dashboards/dashboard_controller.rb:3:in `<module:Dashboards>'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/dashboards/dashboard_controller.rb:2:in `<module:ActiveAdmin>'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/dashboards/dashboard_controller.rb:1:in `<top (required)>'
(eval):1:in `generate_dashboard_controller'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:167:in `eval'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:167:in `generate_dashboard_controller'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin/namespace.rb:38:in `initialize'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:147:in `new'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:147:in `find_or_create_namespace'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:282:in `load_default_namespace'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:188:in `load!'
/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.2.2/lib/active_admin.rb:212:in `routes'
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评论（2）
您似乎缺少
formtasticgem。在当前版本的 active-admin (0.3.2) 中，它被正确指定为依赖项。所以我希望更新 activeadmin gem (
bundle update activeadmin) 能够解决这个问题。如果这不能解决问题，我将显式地将
formtastic添加到Gemfile中。希望这有帮助。
You seem to be missing the
formtasticgem. In the current version of active-admin (0.3.2) it is correctly specified as a dependency.So I hope updating the activeadmin gem (
bundle update activeadmin) will fix it.If that does not fix it, I would add
formtasticexplicitly to theGemfile.Hope this helps.
在 Rails 3 中，Formtastic::SemanticFormHelper 变成了 => Formtastic::Helpers::FormHelper
不要忘记加载您的库。默认情况下，rails 不会加载它们，因此您只需在 application.rb 中取消注释 config.autoload_paths += %W(#{config.root}/lib)
In rails 3 the Formtastic::SemanticFormHelper became => Formtastic::Helpers::FormHelper
Don't forget to load your lib. By default rails don't load them so you can just uncomment config.autoload_paths += %W(#{config.root}/lib) in your application.rb