Class and factory are missing in definition of service ‘*’

Hi I don't know if it's bug or “feature” BUT.

If I try to use combinatione Nette\DI\CompilerExtension with standard config.neon setup it's throws Class and factory are missing in definition of service 'testService'.

Extension file

class TestExtension extends CompilerExtension {

    public function loadConfiguration() {
        $builder    = $this->getContainerBuilder();


        $builder->addDefinition($this->prefix('testService'))
            ->setClass('NameSpace\TestClass');
    }

}

config.neno

extensions:
	test: TestExtension

services:

	# Repositories
	studentsRepository: App\MainModul\Model\StudentsRepository
	personsRepository: App\MainModul\Model\PersonsRepository
	addressesRepository: App\MainModul\Model\AddressesRepository
	countriesRepository: App\MainModul\Model\CountriesRepository

	testService:
		setup:
			- "$service->addModel(?,?)"('1',@studentsRepository)
			- "$service->addModel(?,?)"('2',@personsRepository)
			- "$service->addModel(?,?)"('3',@addressesRepository)
			- "$service->addModel(?,?)"('4',@countriesRepository)

I am doing something wrong?