protected function activatePackage($packageKey) { try { $this->packageManager->activatePackage($packageKey); $message = new Message('The package %s is activated', 1343231680, array($packageKey)); } catch (UnknownPackageException $exception) { $message = new Error('The package %s is not present and can not be activated', 1343231681, array($packageKey)); } return $message; }