Laravel migrations: Class "not found"

Question

I am deploying a Laravel barebone project to Microsoft Azure, but whenever I try to execute php artisan migrate I get the error:

[2015-06-13 14:34:05] production.ERROR: exception 'Symfony\Component\Debug\Exception\FatalErrorException' with message 'Class '' not found' in D:\home\site\vendor\laravel\framework\src\Illuminate\Database\Migrations\Migrator.php:328

Stack trace:

 #0 {main}  

What could be the problem? Thank you very much

-- edit --

Migration Class

<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateUsersTable extends Migration {

    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('users', function(Blueprint $table)
        {
            $table->bigIncrements('id');
            $table->string('name', 50);
            $table->string('surname', 50);
            $table->bigInteger('telephone');
            $table->string('email', 50)->unique();
            $table->string('username', 50)->unique();
            $table->string('password', 50);
            $table->boolean('active')->default(FALSE);
            $table->string('email_confirmation_code', 6);
            $table->enum('notify', ['y', 'n'])->default('y');
            $table->rememberToken();
            $table->timestamps();
            
            $table->index('username');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('users');
    }
}

Answer 1

For PSR-4 Auto Loader Users (composer.json):

Keep the migrations folder inside classmap array and do not include it inside psr-4 object under autoload head. As migrations' main class Migrator doesn't support namespacing. For example;

"autoload": {
    "classmap": [
        "app/database/migrations"
    ],
    "psr-4": {
        "Acme\\controllers\\": "app/controllers"
    }
}

Then run:

php artisan clear-compiled 
php artisan optimize:clear
composer dump-autoload
php artisan optimize

• First one clears all compiled autoload files.
• Second clears Laravel caches (optional)
• Third builds the autoloader for namespaced classes.
• Fourth optimizes various parts of your Laravel app and builds the autoloader for non-namespaced classes.

From this time on wards, you will not have to do this again and any new migrations will work correctly.