请教一下外键约束出现的问题，提示不兼容，应该怎么解决呢？

Schema::table('supply_infos', function (Blueprint $table) {
// 当 user_id 对应的 users 表数据被删除时，删除供应信息
$table->unsignedInteger('user_id')->change();
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
});Copy

  SQLSTATE[HY000]: General error: 3780 Referencing column 'user_id' and referenced column 'id' in foreign key constraint 'supply_infos_user_id_foreign' are incompatible. (SQL: alter table `supply_infos` add constraint `supply_infos_user_id_foreign` foreign key (`user_id`) references `users` (`id`) on delete cascade)Copy

$table->id();Copy

$table->integer('user_id')->comment('所属用户');Copy

user表是bigint类型
其他表的user_id 是int类型Copy