'Class tableseeder does not exist (although it really exists) :S

I get this error when trying to migrate plus seeding my database using laravel 5.4

[ReflectionException] Class PostTagTableSeeder does not exist

In fact the file really exist with correct class name

seeds/PostTagTableSeeder.php

<?php

use Illuminate\Database\Seeder;
use App\Tag;
use App\Post;

class PostTagTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        Model::unguard();
        //DB::table('post_tag')->delete();

        $tag1       = Tag::find(1);
        $tag2       = Tag::find(2);
        $tag3       = Tag::find(3);
        $tag4       = Tag::find(4);
        $post1      = Post::find(1);
        $post2      = Post::find(2);
        $post3      = Post::find(3);
        $post4      = Post::find(4);
        $post5      = Post::find(5);
        $post6      = Post::find(6);
        $post7      = Post::find(7);
        $post8      = Post::find(8);
        $post9      = Post::find(9);
        $post10     = Post::find(10);
        $post11     = Post::find(11);
        $post12     = Post::find(12);
        $post13     = Post::find(13);
        $post14     = Post::find(14);
        $post15     = Post::find(15);

        $post1->tags()->attach([$tag1->id,$tag2->id,$tag3->id]);
        $post2->tags()->attach([$tag2->id,$tag4->id]);
        $post3->tags()->attach([$tag2->id,$tag3->id,$tag4->id]);
        $post4->tags()->attach([$tag4->id]);
        $post5->tags()->attach([$tag2->id]);
        $post6->tags()->attach([$tag2->id]);
        $post7->tags()->attach([$tag2->id]);
        $post8->tags()->attach([$tag1->id,$tag4->id]);
        $post9->tags()->attach([$tag1->id,$tag4->id]);
        $post10->tags()->attach([$tag3->id]);
        $post11->tags()->attach([$tag1->id]);
        $post12->tags()->attach([$tag1->id]);
        $post13->tags()->attach([$tag3->id]);
        $post14->tags()->attach([$tag1->id,$tag2->id,$tag4->id]);
        $post15->tags()->attach([$tag1->id,$tag2->id,$tag4->id]);
    }
}

seeds/DatabaseSeeder.php

<?php

use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        $this->call(UsersTableSeeder::class);
        $this->call(AdminsTableSeeder::class);
        $this->call(PostsTableSeeder::class);
        $this->call(CategoriesTableSeeder::class);
        $this->call(CategoryPostTableSeeder::class);
        $this->call(TagsTableSeeder::class);
        $this->call(PostTagTableSeeder::class);
        $this->call(CommentsTableSeeder::class);
    }
}

I have been struggling to fix this issue but yet i still get the same errorenter image description here

phplaravellaravel-5.4


Solution 1:[1]

Had the same issue and running

composer dump-autoload

as suggested above by Vape and Oliver fixed the issue. Then re-run the migrations

php artisan migrate:refresh --seed

or the seeder

php artisan db:seed

and it'll run like a charm.

Solution 2:[2]

For some, due to your file structure or composer set-up, all you need to run is:

composer dump-autoload

or

composer.phar dump-autoload

Then, retry the seeder script.

Solution 3:[3]

When you have written your seeder, you may need to regenerate Composer's autoloader using the dump-autoload command: here

composer dump-autoload

Now you may use the db:seed Artisan command to seed your database.

Solution 4:[4]

If you have migrated to Laravel 8, you will need to namespace your seeder classes as follows:

<?php

namespace Database\Seeders;

use App\Models\User;
use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
    
    public function run()
    {
        
    }
}

Then, you have to import the seeder classes with the correct namespace.

Then, in your composer.json file, remove classmap block from the autoload section and add the new namespaced class directory mappings:

"autoload": {
    "psr-4": {
        "App\\": "app/",
        "Database\\Factories\\": "database/factories/",
        "Database\\Seeders\\": "database/seeders/"
    }
},

Then, run composer dump

Finally, the database/seeds directory should be renamed to database/seeders (if you have not yet renamed it)

This breaking change is documented here https://laravel.com/docs/8.x/upgrade#seeder-factory-namespaces

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Tiago Martins Peres
Solution 2 Oladipo
Solution 3 tvs89
Solution 4 mutiemule

Related Questions