Laravel-ide-helper: lumen: ide-helper:generate terminates with error 'Class App does not exist'

[crhg]

PROBLEM

When I run ide-helper:generate on lumen project, it ended with the following error and it does not generate _ide_helper.php.

% php artisan ide-helper:generate

In Alias.php line 69:

  Class App does not exist

The versions are as follows:

laravel/lumen-framework: v5.6.4
barryvdh/laravel-ide-helper: v2.5.0

STEP TO REPRODUCE

create lumen project

composer create-project --prefer-dist laravel/lumen foo

require laravel-ide-helper

composer require barryvdh/laravel-ide-helper

modify bootstrap/app.php

Uncomment the following two lines.

$app->withFacades();

$app->register(App\Providers\AppServiceProvider::class);

modify app/Providers/AppServiceProvider.php

Register IdeHelperServiceProvider in register()

    public function register()
    {
        $this->app->register(\Barryvdh\LaravelIdeHelper\IdeHelperServiceProvider::class);
    }

run ide-helper:generate

php artisan ide-helper:generate

[crhg]

The error occurs at line 69 of src/Alias.php, which is added since v2.5.0.

            //Create a DocBlock and serializer instance
            $this->phpdoc = new DocBlock(new ReflectionClass($alias), new Context($this->namespace));

Lumen does not provide an alias App to \Illuminate\Support\Facades\App by default. (see \Laravel\Lumen\Application::withAliases())

So there is no App class, and it will be an error to create RefrectionClass of App. However, the root cause seems to be trying to create an Alias object for a non-existent App class.

This process is based on the alias => original array returned by \Barryvdh\LaravelIdeHelper\Generator::getAliases(). The problem is that the return value of getaliases() contains App which does not exist.

    protected function getAliases()
    {
        // For Laravel, use the AliasLoader
        if (class_exists('Illuminate\Foundation\AliasLoader')) {
            return AliasLoader::getInstance()->getAliases();
        }

        $facades = [
          'App' => 'Illuminate\Support\Facades\App',
          'Auth' => 'Illuminate\Support\Facades\Auth',
          'Bus' => 'Illuminate\Support\Facades\Bus',
          'DB' => 'Illuminate\Support\Facades\DB',
          'Cache' => 'Illuminate\Support\Facades\Cache',
          'Cookie' => 'Illuminate\Support\Facades\Cookie',
          'Crypt' => 'Illuminate\Support\Facades\Crypt',
          'Event' => 'Illuminate\Support\Facades\Event',
          'Hash' => 'Illuminate\Support\Facades\Hash',
          'Log' => 'Illuminate\Support\Facades\Log',
          'Mail' => 'Illuminate\Support\Facades\Mail',
          'Queue' => 'Illuminate\Support\Facades\Queue',
          'Request' => 'Illuminate\Support\Facades\Request',
          'Schema' => 'Illuminate\Support\Facades\Schema',
          'Session' => 'Illuminate\Support\Facades\Session',
          'Storage' => 'Illuminate\Support\Facades\Storage',
          //'Validator' => 'Illuminate\Support\Facades\Validator',
        ];

        $facades = array_merge($facades, $this->config->get('app.aliases', []));

        // Only return the ones that actually exist
        return array_filter($facades, function ($alias) {
            return class_exists($alias);
        });
    }

There is an array_filter to eliminate aliases that do not exist at the end of this function, but since the class name of alias is on the key side of the $facades array, it is needed to do the following using ARRAY_FILTER_USE_KEY to check its existence:

        return array_filter(
            $facades,
            function ($alias) {
                return class_exists($alias);
            },
            ARRAY_FILTER_USE_KEY
        );

[YWatchman]

I too have this problem.

MBP-van-Yvan:cyberfusion-api yvanwatchman$ php artisan ide-helper:generate

In Alias.php line 69:

    Class App does not exist

[EmperorArthur]

Can also confirm. Same error as YWatchman.

[noitran-forks]

I don't know will someone of contributors of this package fix this bug, but temporary workaround, while this issue is open, would be to add in app.php something like this:

$classes = [
    'App' => Illuminate\Support\Facades\App::class,
    'Bus' => Illuminate\Support\Facades\Bus::class,
    'Hash' => Illuminate\Support\Facades\Hash::class,
    'Request' => Illuminate\Support\Facades\Request::class,
];

foreach ($classes as $alias => $class) {
    if (! class_exists($alias)) {
        class_alias($class, $alias);
    }
}

[moazam1]

I am still having same issue. I am using 2.5.1. @iocaste fix solved my problem.

[edmundluong88]

+1 also having this issue.

laravel/lumen-framework: v5.6.4
barryvdh/laravel-ide-helper: v2.5.1

[bleuscyther]

I had to apply @iocaste 's fix for every Class missing

[julioalves]

+1
same problem with laravel/lumen-framework: v5.6.4

[cnbattle]

+1
laravel/lumen-framework: v5.7.1
barryvdh/laravel-ide-helper: v2.5.1

[Awezome]

same here

laravel/lumen-framework: v5.7.1
barryvdh/laravel-ide-helper: v2.5.1

[j3rrey]

Having the same issue "laravel/lumen-framework": "5.5.*" "barryvdh/laravel-ide-helper": "^2.5"

[crhg]

I executed 'steps to reproduce' again on this issue. An error occurred, but it is different from what I reported on this issue.

% php artisan ide-helper:generate

In FilesystemManager.php line 160:

  Class 'League\Flysystem\Adapter\Local' not found

So this is another problem.

The root cause has not been investigated, but it can be avoided by installing league/flysystem.

composer require league/flysystem

After installing it, I was able to execute ide-helper:generate successfully.

This has already been reported as #723.

[emiliopedrollo]

I have a similar problem with Laravel 5.7: ide-helper:meta returns:

In MetaCommand.php line 138:

  Class 'CreateMetaTable' not found.