如何在laravel 5.5中进行迁移？

Question

我使用 laravel 5.5 创建了一个Auth项目并创建了新的迁移，并且在迁移时收到此错误消息：

在Connection.php第647行中：

SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'users' already exists
(SQL: create table `users` (
      `id` int unsigned not null auto_increment primary key,
      `name` varchar(255) not null,
      `username` varchar(255) not null,
      `email` varchar(255) not null,
      `password` varchar(255) not null,
      `remember_token` varchar(100) null,
      `created_at` timestamp null,
      `updated_at` timestamp null,
      `role` int not null
      ) default character set utf8mb4 collate utf8mb4_unicode_ci
)

在Connection.php第449行中：

SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'users' already exists

我尝试php artisan migration –force和php artisan migration：rollback

并尝试删除所有表格并再次迁移，仍然会遇到此错误

Answer 1

在CMD（DOS）中读取错误消息后，检查laravel文档

长度错误我不知道是否有人之前或之后看到此错误，但是当我编辑其工作长度时

我编辑3迁移如下：-

1 -1- Schema::create('users', function (Blueprint $table) { $table->increments('id'); $table->string('name'); $table->string('username')->unique(); $table->string('email')->unique(); $table->string('password'); $table->rememberToken(); $table->timestamps(); $table->integer('role'); });

现在它

        Schema::create('users', function (Blueprint $table) {
        $table->increments('id')->autoIncrement();
        $table->string('name',200);
        $table->string('username',50)->unique();
        $table->string('email',100)->unique();
        $table->string('password',50);
        $table->string('role',50);
        $table->rememberToken();
        $table->timestamps();

    });

2号是

 Schema::create('password_resets', function (Blueprint $table) { $table->string('email')->index(); $table->string('token'); $table->timestamp('created_at')->nullable(); });

现在它是：-

        Schema::create('passwordreset', function (Blueprint $table) {
        $table->string('email',200)->index();
        $table->string('token',200);
        $table->timestamp('created_at')->nullable();
    });

3号是：-

3- Schema::create('tweets', function (Blueprint $table) { $table->increments('id'); $table->integer('user_id')->unsigned()->index(); $table->text('text'); $table->timestamps(); });

现在它：-

        Schema::create('tweets', function (Blueprint $table) {
        $table->increments('id')->autoIncrement();
        $table->string('user_id',50)->index();
        $table->string('twetts',255);
        $table->timestamps();
    });