PHP Fatal error: Uncaught Error: Class 'Yii' not found when running the analysis

[senguttuvang]

➜ MMR git:(PHP-Static-Code-Analysis) ✗ vendor/bin/phpstan analyse frontend

Note: Using configuration file /vagrant/MMR/phpstan.neon.
PHP Fatal error:  Uncaught Error: Class 'Yii' not found in /vagrant/MMR/frontend/config/web.php:9
Stack trace:
#0 /vagrant/MMR/vendor/proget-hq/phpstan-yii2/src/ServiceMap.php(31): require()
#1 /tmp/phpstan/cache/nette.configurator/Container_36e5b17f91.php(3264): Proget\PHPStan\Yii2\ServiceMap->__construct('/vagrant/MMR/ve...')
#2 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(146): Container_36e5b17f91->createService0169()
#3 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(88): _HumbugBoxa35debbd0202\Nette\DI\Container->createService('0169')
#4 /tmp/phpstan/cache/nette.configurator/Container_36e5b17f91.php(3197): _HumbugBoxa35debbd0202\Nette\DI\Container->getService('0169')
#5 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(146): Container_36e5b17f91->createService0158()
#6 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(88): _HumbugBoxa35debbd0202\Nette\DI\Container- in /vagrant/MMR/frontend/config/web.php on line 9
Fatal error: Uncaught Error: Class 'Yii' not found in /vagrant/MMR/frontend/config/web.php:9
Stack trace:
#0 /vagrant/MMR/vendor/proget-hq/phpstan-yii2/src/ServiceMap.php(31): require()
#1 /tmp/phpstan/cache/nette.configurator/Container_36e5b17f91.php(3264): Proget\PHPStan\Yii2\ServiceMap->__construct('/vagrant/MMR/ve...')
#2 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(146): Container_36e5b17f91->createService0169()
#3 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(88): _HumbugBoxa35debbd0202\Nette\DI\Container->createService('0169')
#4 /tmp/phpstan/cache/nette.configurator/Container_36e5b17f91.php(3197): _HumbugBoxa35debbd0202\Nette\DI\Container->getService('0169')
#5 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(146): Container_36e5b17f91->createService0158()
#6 phar:///vagrant/MMR/vendor/phpstan/phpstan/phpstan/vendor/nette/di/src/DI/Container.php(88): _HumbugBoxa35debbd0202\Nette\DI\Container- in /vagrant/MMR/frontend/config/web.php on line 9

➜ MMR git:(PHP-Static-Code-Analysis) ✗

[Khartir]

I had the same problem. I solved it by adding require_once (__DIR__ . '/../vendor/yiisoft/yii2/Yii.php'); to the config file.
This caused a redeclare error at first, because the file was required again in the phpstan bootstrap file. Changing that to a require_once solved it.

It seems to me that this extension tries to load the config file before the phpstan bootstrap file is loaded. Is that possible?