ruby-on-rails - RubyMine 错误 : Unable to find associated Rails Model for ':users' associations failed

Question

我正在编写一些教程，但遇到了一些问题。 RubyMine 无法为“:users”关联找到关联的 Rails 模型失败

我正在使用:
- ruby 矿 7
- Ruby 版本 meneger (rvm)
- ruby​​-1.9.3-p551 [x86_64]
- ruby​​-2.1.5 [x86_64]
- rails Rails 4.1.8

- gem sqllite3

我的模型是:

class Company < ActiveRecord::Base
  has_many :users
  has_many :projects
end

class Project < ActiveRecord::Base
  belongs_to :company
  has_many :works
  has_many :users, :through => :works
end

class User < ActiveRecord::Base
  belongs_to :company
  has_many :works
  has_many :projects, :through => :works
end

class Work < ActiveRecord::Base
  belongs_to :project
  belongs_to :user
end

Shema.rb

ActiveRecord::Schema.define(version: 20141207111312) do

  create_table "companies", force: true do |t|
    t.string   "name"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  create_table "projects", force: true do |t|
    t.string   "name"
    t.integer  "company_id"
    t.integer  "default_rate"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  create_table "users", force: true do |t|
    t.string   "fname"
    t.string   "lname"
    t.integer  "company_id"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "user_id"
  end

  add_index "users", ["user_id"], name: "index_users_on_user_id"

  create_table "works", force: true do |t|
    t.integer  "project_id"
    t.integer  "user_id"
    t.datetime "datetimeperformed"
    t.decimal  "hours",             precision: 5, scale: 2
    t.datetime "created_at"
    t.datetime "updated_at"
  end

end

我的代码有问题还是 RubyMine 配置有问题？

更新:
如果我使用 Mysql2 或 sqllite3 gem，问题是一样的

Answer 1

这是一个常见的 RubyMine 错误，通常可以通过运行 File/Invalidate Caches... 来解决。