如何在laravel 5.5中进行迁移？

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();    });