rails服务器无法启动

Question

当我尝试运行我的rails服务器时，出现以下错误：

/Users/yedidyaweiner/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/activerecord-      4.1.1/lib/active_record/associations/builder/association.rb:63:in `initialize': undefined   method `arity' for :versions:Symbol (NoMethodError)
from /Users/yedidyaweiner/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/associations/builder/collection_association.rb:18:in `initialize'

提前谢谢。

Answer 1

转到config / environments / development.rb

设置config.eager_load = true