SQLSTATE[HY000]: General error: 3734 Failed to add the foreign key constraint. Missing column 'id' for constraint 'posts_user_id_foreign' in the referenced table 'users' (SQL: alter table `posts` add constraint `posts_user_id_foreign` foreign key (`user_id`) references `users` (`id`))

  at D:\multimedia-projects-main (1)\multimedia-projects-main\jobsearch\vendor\laravel\framework\src\Illuminate\Database\Connection.php:761
    757▕         // If an exception occurs when attempting to run a query, we'll format the error
    758▕         // message to include the bindings with SQL, which will make this exception a
    759▕         // lot more helpful to the developer instead of just the database's errors.
    760▕         catch (Exception $e) {
  ➜ 761▕             throw new QueryException(
    762▕                 $query, $this->prepareBindings($bindings), $e
    763▕             );
    764▕         }
    765▕     }

  1   D:\multimedia-projects-main (1)\multimedia-projects-main\jobsearch\vendor\laravel\framework\src\Illuminate\Database\Connection.php:546
      PDOException::("SQLSTATE[HY000]: General error: 3734 Failed to add the foreign key constraint. Missing column 'id' for constraint 'posts_user_id_foreign' in the referenced table 'users'")

  2   D:\multimedia-projects-main (1)\multimedia-projects-main\jobsearch\vendor\laravel\framework\src\Illuminate\Database\Connection.php:546
      PDOStatement::execute()

外部公共函数up（）的代码如下所示

{
        Schema::create('posts', function (Blueprint $table) {
            $table->id('post_id')->unique()->nullable(false);
            $table->biginteger('user_id')->unasigned()->index();         
            $table->biginteger('company_id')->unasigned()->index();          
            $table->biginteger('job_id')->unasigned()->index();          
            $table->timestamps();
        });
        Schema::table('posts', function($table) {
            $table->foreign('user_id')->references('id')->on('users');
            $table->foreign('company_id')->references('id')->on('companies');
             $table->foreign('job_id')->references('id')->on('jobs');
        });
    }

这是给用户的

public function up()
    {
        Schema::create('users', function (Blueprint $table) {
            $table->id('user_id');
            $table->string('name');
            $table->string('email')->unique();
            $table->foreignid('companyid');
            $table->timestamp('email_verified_at')->nullable();
            $table->string('password');
            $table->rememberToken();
            $table->timestamps();
        });
    }

其余的都差不多
已经尝试将外键更改为大整数和整数，已经尝试更改外部引用的名称，但仍然不起作用