我跟着@JellyBool的视频学习。
在CMD命令行上运行了下面的命令。

 php artisan make:migration create_articles_table --create=articles

然后在 2015_10_23_022143_create_articles_table.php 中书写了下面的代码

 public function up()
    {
        Schema::create('articles', function (Blueprint $table) {
            $table->increments('id');
            $table->string('title');
            $table->text('content');
            $table->timestamps('published_at');
            $table->timestamps();
        });
    }

接着在CMD上运行就弹出错误了，数据库里也没有显示 articles 表，是哪个地方出现了字段重复？

 D:\laravel>php artisan migrate



  [Illuminate\Database\QueryException]
  SQLSTATE[42S21]: Column already exists: 1060 Duplicate column name 'created
  _at' (SQL: create table `articles` (`id` int unsigned not null auto_increme
  nt primary key, `title` varchar(255) not null, `content` text not null, `cr
  eated_at` timestamp default 0 not null, `updated_at` timestamp default 0 no
  t null, `created_at` timestamp default 0 not null, `updated_at` timestamp d
  efault 0 not null) default character set utf8 collate utf8_unicode_ci)






  [PDOException]
  SQLSTATE[42S21]: Column already exists: 1060 Duplicate column name 'created
  _at'