TYPO3 Exception 1509654728

[TYPO3 10.4.17] - [2021.06.15]

Situation

The exception was thrown when trying to activate an extension which utilized \TYPO3\CMS\Core\Configuration\ExtensionConfiguration->get() to load its configurations. The configuration file was missing.

Solution

Make sure a configuration file exists or properly catch the exception: https://docs.typo3.org/m/typo3/reference-coreapi/10.4/en-us/ExtensionArchitecture/ConfigurationOptions/Index.html