你好程序员和开发人员!!!，当我尝试访问 DeviseMultipleTokenAuthDevice 时，我在 rails console 中遇到了问题然后我收到以下错误:< br/>
Loading development environment (Rails 4.2.0)
2.2.4 :001 > DeviseMultipleTokenAuthDevice
NameError: uninitialized constant DeviseMultipleTokenAuthDevice
from (irb):1
from /Users/vishal/.rvm/gems/ruby-2.2.4@devise_demo/gems/railties-4.2.0/lib/rails/commands/console.rb:110:in `start'
from /Users/vishal/.rvm/gems/ruby-2.2.4@devise_demo/gems/railties-4.2.0/lib/rails/commands/console.rb:9:in `start'
from /Users/vishal/.rvm/gems/ruby-2.2.4@devise_demo/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:68:in `console'
from /Users/vishal/.rvm/gems/ruby-2.2.4@devise_demo/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /Users/vishal/.rvm/gems/ruby-2.2.4@devise_demo/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
2.2.4 :002 >
下面是我在我的项目中用于用户身份验证的 gem
gem 'devise'
gem 'devise_multiple_token_auth'
以下是我记录的表格:
2.2.4 :002 > p ActiveRecord::Base.connection.tables
["schema_migrations", "users", "devise_multiple_token_auth_devices"]
=> ["schema_migrations", "users", "devise_multiple_token_auth_devices"]
2.2.4 :003 >
有关更多信息，您可以访问以下链接:
其他需要的信息
ruby 版本 2.2.4
Rails 版本 4.2.0
数据库 PSQL
最佳答案
同样的解决方案是，我们必须在 app/models/中创建一个名为 devise_multiple_token_auth_device.rb 的文件
这是devise_multiple_token_auth_device.rb文件的代码
class DeviseMultipleTokenAuthDevice < ActiveRecord::Base
belongs_to :user
end
关于ruby-on-rails - 名称错误 : uninitialized constant DeviseMultipleTokenAuthDevice，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44238355/