rails db:migrateにてエラーが出る

前提・実現したいこと

フォームオブジェクトによりstock_itemsテーブルとtagsテーブルに登録出来るようにしたい。その為に中間テーブルを作成したいがエラーが出てしまう。

発生している問題・エラーメッセージ

StandardError:
1
2Column `stock_item_id` on table `item_connects` does not match column `id` on `stock_items`, which has type `bigint(20)`. To resolve this issue, change the type of the `stock_item_id` column on `item_connects` to be :bigint. (For example `t.bigint :stock_item_id`).
3Original message: Mysql2::Error: Cannot add foreign key constraint
4/Users/watanabekenta/orijinals/n-web_app/db/migrate/20210824112715_create_item_connects.rb:3:in `change'
5/Users/watanabekenta/orijinals/n-web_app/bin/rails:9:in `<top (required)>'
6/Users/watanabekenta/orijinals/n-web_app/bin/spring:15:in `<top (required)>'
7bin/rails:3:in `load'
8bin/rails:3:in `<main>'
9
10Caused by:
11ActiveRecord::MismatchedForeignKey: Column `stock_item_id` on table `item_connects` does not match column `id` on `stock_items`, which has type `bigint(20)`. To resolve this issue, change the type of the `stock_item_id` column on `item_connects` to be :bigint. (For example `t.bigint :stock_item_id`).
12Original message: Mysql2::Error: Cannot add foreign key constraint
13/Users/watanabekenta/orijinals/n-web_app/db/migrate/20210824112715_create_item_connects.rb:3:in `change'
14/Users/watanabekenta/orijinals/n-web_app/bin/rails:9:in `<top (required)>'
15/Users/watanabekenta/orijinals/n-web_app/bin/spring:15:in `<top (required)>'
16bin/rails:3:in `load'
17bin/rails:3:in `<main>'
18
19Caused by:
20Mysql2::Error: Cannot add foreign key constraint
21/Users/watanabekenta/orijinals/n-web_app/db/migrate/20210824112715_create_item_connects.rb:3:in `change'
22/Users/watanabekenta/orijinals/n-web_app/bin/rails:9:in `<top (required)>'
23/Users/watanabekenta/orijinals/n-web_app/bin/spring:15:in `<top (required)>'
24bin/rails:3:in `load'
25bin/rails:3:in `<main>'
26Tasks: TOP => db:migrate
27(See full trace by running task with --trace)
28エラーメッセージ

該当のソースコード

class CreateItemConnects < ActiveRecord::Migration[6.0]
  def change
    create_table :item_connects do |t|
      t.references :stock_item, foreign_key: true
      t.references :tag_word,   foreign_key: true
      t.timestamps
    end
  end
end

tagrb
1class Tag < ActiveHash::Base
2  self.data = [
3    { id: 1, name: '--' },
4    { id: 2, name: '和食' },
5    { id: 3, name: '洋食' },
6    { id: 4, name: '中華' },
7    { id: 5, name: '揚げ' },
8    { id: 6, name: '炒め' },
9    { id: 7, name: '湯せん' },
10    { id: 8, name: '焼き' },
11    { id: 9, name: '蒸し' },
12    { id: 10, name: '自然解凍' },
13    { id: 11, name: '鍋' },
14    { id: 12, name: '牛' },
15    { id: 13, name: '豚' },
16    { id: 14, name: '鶏' },
17    { id: 15, name: '海鮮' },
18    { id: 16, name: '山菜' },
19    { id: 17, name: '野菜' },
20    { id: 18, name: 'ラーメン' },
21    { id: 19, name: 'うどん' },
22    { id: 20, name: 'そば' },
23    { id: 21, name: 'パスタ' },
24    { id: 22, name: 'パン' },
25    { id: 23, name: 'ご飯' },
26    { id: 24, name: 'パン' },
27    { id: 25, name: '丼' },
28    { id: 26, name: 'オードブル' },
29    { id: 27, name: '弁当' },
30    { id: 28, name: '副菜' },
31    { id: 29, name: '先付' },
32    { id: 30, name: '椀種' },
33    { id: 31, name: '八寸' },
34    { id: 32, name: 'お子様' },
35    { id: 33, name: 'スイーツ' },
36    { id: 34, name: '洋菓子' },
37    { id: 35, name: '和菓子' },
38    { id: 36, name: '調味料' },
39    { id: 37, name: 'ドレッシング' },
40    { id: 38, name: 'タレ' },
41    { id: 39, name: '乾物' },
42  ]
43
44  include ActiveHash::Associations
45  has_many :item_connects
46  has_many :stock_items, through: :item_connects
47
48end

stockitem
1class StockItem < ApplicationRecord
2
3  has_many :item_connects, dependent: :destroy
4  has_one_attached :image
5
6  extend ActiveHash::Associations::ActiveRecordExtensions
7  has_many :tags, through: :item_connects
8end

itemconnect
1class ItemConnect < ApplicationRecord
2
3  belongs_to :stock_item
4
5  extend ActiveHash::Associations:ActiveRecord ActiveRecordExtensions
6  belongs_to :tag
7end