Rails3.1.1 和 sunspot：Solr 响应：未找到错误

Question

我正在尝试使用 sunspot_solr 构建一个应用程序，但不断收到此错误：

rsolr (0.12.1) lib/rsolr/connection/requestable.rb:39:in `request'
rsolr (0.12.1) lib/rsolr/client.rb:34:in `request'
sunspot (1.2.1) lib/sunspot/search/abstract_search.rb:35:in `execute'
sunspot_rails (1.2.1) lib/sunspot/rails/searchable.rb:306:in `solr_execute_search'
sunspot_rails (1.2.1) lib/sunspot/rails/searchable.rb:139:in `solr_search'
app/controllers/search_controller.rb:7:in `results'

这是我的 sunspot.yml：

solr:
    hostname: localhost
    port: 8980
    log_level: INFO
    path: /solr
    pid_dir: /solr/pids/development
    auto_commit_after_delete_request: true

solr 实例位于 http://localhost:8980/solr/admin/ 确实有效，当我在那里运行查询时，我得到了所有想要的结果。但是当我运行我的应用程序时，我收到上述错误。

我的配置： 导轨3.1.1 太阳黑子：1.2.1

请告诉我您还需要我提供哪些其他信息，并提前感谢您的答复。

我查看了日志文件并发现了此错误：

DEPRECATION WARNING: class_inheritable_attribute is deprecated, please use class_attribute method instead. Notice their behavior are slightly different, so refer to class_attribute documentation first. (called from <class:User> at /home/romio/hummingtown_v1/app/models/user.rb:17)

这是我的 user.rb：

require 'digest/sha2'

class User < ActiveRecord::Base

    has_many :userauths, :dependent => :destroy

    attr_accessor :password
    attr_accessible :first_name, :last_name, :email, :password, :salt

    email_regex = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i

    validates :first_name, :presence => true, :length => { :maximum => 50 }
    validates :last_name, :presence => true, :length => { :maximum => 50 }
    validates :email, :presence => true, :format => { :with => email_regex }, 
                :uniqueness => { :case_sensitive => false }

    searchable :auto_index => true, :auto_remove => true do
        text :first_name, :default_boost => 2
        text :last_name
        text :email
    end