使用 Omniauth 时出现奇怪的错误。这似乎与我的代码无关。
这是 Twitter 返回一些奇怪的变形对象的结果吗?
You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.[]
oa-oauth (0.1.6) lib/omniauth/strategies/oauth.rb:24:in `callback_phase'
oa-core (0.1.6) lib/omniauth/strategy.rb:27:in `call!'
oa-core (0.1.6) lib/omniauth/strategy.rb:19:in `call'
oa-core (0.1.6) lib/omniauth/builder.rb:30:in `call'
haml (3.0.24) lib/sass/plugin/rack.rb:41:in `call'