Laravel 5.6-找不到播种机类

我正在尝试填充一个laravel 5.6项目数据库-遵循 offial docs -没有成功。 php artisan db:seed 引发此异常:

Symfony\Component\Debug\Exception\FatalThrowableError:未找到类“App\Item”

at/Applications/MAMP/htdocs/greylab/inventario/greylab-inventario/vendor/laravel/framework/src/Illuminate/Database/elokent/FactoryBuilder.php:217

异常跟踪:

1说明\数据库\雄辩\ FactoryBuilder::make([]) /应用程序/MAMP/htdocs/greylab/inventario/greylab_inventario/vendor/laravel/framework/src/Illuminate/Database/elokent/FactoryBuilder.php:167

2说明\数据库\雄辩\ FactoryBuilder::创建() /应用程序/mamp/htdocs/greylab/inventario/greylab_inventario/database/seeds/itemtableseeder.php:14

我已经尝试了社区提供的大多数常见建议,比如 this one ,以及:

• 尝试使用 composer self-update + composer dump-autoload (二)
• 关于我的 composer.json 这个 autoload 属性设置为:

"autoload": { "classmap": [ "database/seeds", "database/factories" ], "psr-4": { "App\\": "app/" } },

(也尝试将类映射放入自动加载开发程序中)。

情况是这样的:

项目工厂.php

<?php

use Faker\Generator as Faker;

// Definizione dati test
$factory->define(App\Item::class, function (Faker $faker) {
    return [ ...]
}

itemtableseeder.php项目表编辑器

<?php

use Illuminate\Database\Seeder;

class ItemTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        factory(App\Item::class, 25)->create();
    }
}

数据库播种器.php

<?php

use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
    /**
     * Seed the application's database.
     *
     * @return void
     */
    public function run()
    {
        $this->call(ItemTableSeeder::class);
    }
}

• 最后,我还尝试将依赖项直接放到源中:

use App\Item; use Illuminate\Database\Seeder;

通过移除 App\ 前缀和仅保留 Item::class 在辩论中:

factory(Item::class, 25)->create();

所有这些尝试都没有帮助,所以我真的被卡住了。 如果有人能给我指路,我将不胜感激。

提前感谢大家。

更新

@kerbholz&@h-h: ItemTableSeeder.php ,谢谢你的建议。是的,首先我实现了 Item.php 这样的模型:

<?php

// Definizione Namespace
namespace App;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

/**
 * Classe Item
 */
class Item extends Model
{
    use SoftDeletes;

    // Dichiarazione Proprietà
    protected $table = 'item';
    protected $dateformat = 'Y-m-d';

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'data_acquisto',
        'labeled',
        'estensione_garanzia',
        'stato',
        'data_dismissione',
        'note'
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'codice',
        'serial',
        'componente_id',
        'tipologia_id',
        'condizione_id',
        'locazione_id',
        'fornitore_id',
        'parent_id'
    ];

    /**
     * The attributes that should be mutated to dates.
     *
     * @var array
     */
    protected $dates = [
        'data_acquisto',
        'data_dismissione',
        'deleted_at'
    ];

    /**
     * All of the relationships to be touched.
     *
     * @var array
     */
    protected $touches = [
        'componenti',
        'condizioni',
        'fornitori',
        'locazioni',
        'tipologie'
    ];

    /**
     * Scope query item figli
     * Getter
     * @param array $query Query
     * @return array Query
     */
    public function scopeFigli($query)
    {
        return $query->where('parent_id', '!=', null);
    }

    /**
     * Componenti Correlati
     * Getter
     * @return object Componenti
     */
    public function componenti()
    {
        // Definizione relazione
        return $this->belongsTo('App\Componente');
    }

    /**
     * Condizioni Correlate
     * Getter
     * @return object Condizioni
     */
    public function condizioni()
    {
        // Definizione relazione
        return $this->belongsTo('App\Condizione');
    }

    /**
     * Fornitori Correlati
     * Getter
     * @return object Fornitori
     */
    public function fornitori()
    {
        // Definizione relazione
        return $this->belongsTo('App\Fornitore');
    }

    /**
     * Locazioni Correlate
     * Getter
     * @return object Locazioni
     */
    public function locazioni()
    {
        // Definizione relazione
        return $this->belongsTo('App\Locazione');
    }

    /**
     * Tipologie Correlate
     * Getter
     * @return object Tipologie
     */
    public function tipologie()
    {
        // Definizione relazione
        return $this->belongsTo('App\Tipologia');
    }
}

与此同时,我继续实施其他措施现在,在纠正了错误的类型并每年运行两次之后 作曲家转储自动加载 开始播种。它填充了一些表,但之后抛出了一个新的异常。以下是最后一次尝试的摘录:

    Seeding: ItemTableSeeder

   ErrorException  : Illegal offset type

  at /Applications/MAMP/htdocs/greylab/inventario/greylab_inventario/vendor/laravel/framework/src/Illuminate/Database/Eloquent/FactoryBuilder.php:257
    253|      * @throws \InvalidArgumentException
    254|      */
    255|     protected function getRawAttributes(array $attributes = [])
    256|     {
   257|         if (! isset($this->definitions[$this->class][$this->name])) {

@H-H:在这种情况下,我试图在“app”之前加反斜杠: \App\Item::class 没有成功不知道是不是和 faker 配置错误。。。