TYPO3 Core

See comment from Ernesto in https://review.typo3.org/#/c/27024/ Mar 4 2:02 PM

From chat:

laut debugger läuft er da rein weil er in "registerPackagesFromConfiguration" auf das hier stößt:
    } catch (\TYPO3\Flow\Package\Exception\InvalidPackageKeyException $exception) {
    $this->unregisterPackageByPackageKey($packageKey);
    continue;
   }

Translation:

according to debugger it runs into this, because it hits the following in "registerPackagesFromConfiguration":
    } catch (\TYPO3\Flow\Package\Exception\InvalidPackageKeyException $exception) {
    $this->unregisterPackageByPackageKey($packageKey);
    continue;
   }