blocks|key|1098972|text|如果您查看指南，它为您的路由文件指定了这一行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1098973|devise_for+:users,+:controllers+=>+{+:omniauth_callbacks+=>+"users/omniauth_callbacks"+}|code-block|syntax|javascript|1098974|你拥有的地方：|1098975|devise_for+:users,+controllers:+{omniauth_callbacks:+"omniauth_callbacks"}|1098976|看到区别了吗？|1098977|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

If you look at the guide it specifies this line for your routes file:

<pre><code>devise_for :users, :controllers =&gt; { :omniauth_callbacks =&gt; "users/omniauth_callbacks" }
</code></pre>

where you have:

<pre><code>devise_for :users, controllers: {omniauth_callbacks: "omniauth_callbacks"}
</code></pre>

see the difference?

blocks|key|779769|text|我在教程中遇到了类似的问题。检查facebook中F的大写字母在用户/omniauth_callback_控制员中。it+i使用大写"Facebook“，但它正在寻找小写的"facebook”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|779770|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I ran into a similar problem with tutorials. Check the capitalization of 
F in facebook in users/omniauth_callbacks_controller.rb I was using a capital "Facebook" but it was looking for lowercase "facebook"

blocks|key|1099039|text|我假设您的用户将能够登录和注销，编辑配置文件，注册在facebook或电子邮件注册，你也可以添加可确认的设计，如果你想。用户表中应该有额外的列。比如首先在用户模型中添加额外的字段。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1099040|rails+g+migration+AddFieledsToUser+provider:string+uid:string+image:string|offset|length|style|CODE|1099041|然后运行rails+db:migrate|1099042|检查您的用户表，确保上面有以下3列|1099043|另外，我假设在正确创建facebook应用程序之后，您已经正确地配置了初始化器/devise.rb，如：config.omniauth+:facebook,+'APP_ID',+'APP_SECRET_KEY',+scope:+'email',+info_fields:+'email,+name'。另外，假设您已经根据gem文件中的gem、gem+'omniauth',+'~>+1.6'和gem+'omniauth-facebook',+'~>+4.0'正确地创建和配置了您的gem+'omniauth',+'~>+1.6'。确保你完成了所有这些步骤。|1099044|在您的routes.rb中，可以添加以下内容：|1099045|devise_for+:users,
+++++++++path:+'',
+++++++++path_names:+{
+++++++++++sign_in:+'login',
+++++++++++sign_out:+'logout',
+++++++++++edit:+'profile',
+++++++++++sign_up:+'registration'
+++++++++},
+++++++++controllers:+{
+++++++++++omniauth_callbacks:+'omniauth_callbacks',
+++++++++}|code-block|syntax|javascript|1099046|我想这是你错过的部分。你也可以选择任何你想要的路线。只是说说而已。|1099047|entityMap^0|0|0|22|0|4|G|0|0|1G|2P|4R|O|5G|X|6O|O|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@$D|10|E|11|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@$D|13|E|14|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|15|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|16|8|@$D|17|E|18|F|G]|$D|19|E|1A|F|G]|$D|1B|E|1C|F|G]|$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|N|3|O|5|6|7|1F|8|@]|9|@]|A|$]]|$1|P|3|Q|5|R|7|1G|8|@]|9|@]|A|$S|T]]|$1|U|3|V|5|6|7|1H|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|X|$]]

I am assuming that your users will be able to login and logout, edit profile, register with facebook or register with email and also you may add Confirmable to devise if you want. You should have extra columns in users table. Something like adding extra fields into your user model first.
<code>rails g migration AddFieledsToUser provider:string uid:string image:string</code>
then run <code>rails db:migrate</code>
Check your users table ensure you have these 3 columns above
Also I am assuming that you you have correctly configured initializers/devise.rb like so: <code>config.omniauth :facebook, 'APP_ID', 'APP_SECRET_KEY', scope: 'email', info_fields: 'email, name'</code> after you've properly created the facebook app. Also assuming you have properly created and configured your <code>omniauth_callbacks_controller.rb</code> based on the gems <code>gem 'omniauth', '~&gt; 1.6'</code> and <code>gem 'omniauth-facebook', '~&gt; 4.0'</code> in your gem file successfully. Just make sure you have all these steps done.
In your routes.rb you can add this:
<pre><code>devise_for :users,
 path: '',
 path_names: {
 sign_in: 'login',
 sign_out: 'logout',
 edit: 'profile',
 sign_up: 'registration'
 },
 controllers: {
 omniauth_callbacks: 'omniauth_callbacks',
 }
</code></pre>
I think this is the part you have missed. You can also name the routes whatever you want. Just saying.

I'm trying to implement facebook authentication in my app following <a href="https://github.com/plataformatec/devise/wiki/OmniAuth:-Overview" rel="noreferrer">this guide</a>

I've followed all the steps but get the following error after hitting login.

<pre><code>Unknown action

The action 'facebook' could not be found for Devise::OmniauthCallbacksController
</code></pre>

I've created the file omniauth_callbacks_controller in controllers/users. It has a facebook method defined. Any idea how I should debug?

<hr>

Adding my routes file - 

<pre><code>Myapp::Application.routes.draw do
 get "static_pages/home"

 get "static_pages/help"

 get "static_pages/about"

 devise_for :users do
 resources :posts

 end

 root :to =&gt; 'static_pages#home'

 devise_for :users, controllers: {omniauth_callbacks: "omniauth_callbacks"}
end
</code></pre>

devise/omniauth - The action 'facebook' could not be found

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正试图在之后的应用程序中实现facebook身份验证我已经完成了所有的步骤，但是在登录后得到了下面的错误。Unknown actionThe action 'facebook' could not be found for Devise::OmniauthCallbacksController我在控制器/用户中创建了...

问设计/无所不在-找不到“facebook”的动作
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