.. include:: /Includes.rst.txt ========================== TYPO3 Exception 1507645381 ========================== .. include:: /If-you-encounter-this-exception.rst.txt RuntimeException: Object Name String, contains invalid character ================================================================ :: #1507645381 RuntimeException Line 0: Object Name String, ".." contains invalid character "...". Must be alphanumeric or one of: "_:-\." Cause of error: BOM in ext_conf_template.txt -------------------------------------------- This exception got thrown in TYPO3 9.5.5, when the :file:`ext_conf_template.txt` file contained a BOM (byte order mark) character at beginning of the file and the Extension Configuration was fetched using the ExtensionConfiguration API. Fix error ^^^^^^^^^ Fix, see these resources: - in the shell: `How to remove BOM `__ - in PhpStorm: Use :guilabel:`File > Remove BOM`, see `How to stop PHPStorm from creating BOM `__