GX-Entwicklung

Beim Hinzufügen einer Download-Produkt-Option erscheint seit der Nutzung von NewAttributesController folgende Fehlermeldung:

2016-03-09 13:10:31 (632d8fb9185f6199a0f59d701d0395b4) FATAL ERROR(1): "Call to undefined function xtc_format_filesize()"Request: GET /gxdev_2.7/src/admin/admin.php?do=NewAttributes/LoadAttributeValues&product_id=1&atttributesId=1 (Details)
Session: (Details)
Get: (Details)
Information:

Fatal error: Call to undefined function xtc_format_filesize() in /var/www/daw/html/gxdev_2.7/src/admin/includes/functions/general.php on line 2431

Call Stack:
0.0021 241904 1. {main}() /var/www/daw/html/gxdev_2.7/src/admin/admin.php:0
0.1524 6502352 2. HttpService->handle() /var/www/daw/html/gxdev_2.7/src/admin/admin.php:15
0.1524 6502480 3. HttpDispatcher->dispatch() /var/www/daw/html/gxdev_2.7/src/GXEngine/Classes/SystemServices/Http/HttpService.inc.php:67
0.1649 6675776 4. HttpViewController->proceed() /var/www/daw/html/gxdev_2.7/src/GXEngine/Classes/SystemServices/Http/HttpDispatcher.inc.php:72
0.1649 6676088 5. HttpViewController->_callActionMethod() /var/www/daw/html/gxdev_2.7/src/GXEngine/Classes/SystemServices/Http/HttpViewController.inc.php:95
0.1649 6676624 6. call_user_func:{/var/www/daw/html/gxdev_2.7/src/GXEngine/Classes/SystemServices/Http/HttpViewController.inc.php:140}() /var/www/daw/html/gxdev_2.7/src/GXEngine/Classes/SystemServices/Http/HttpViewController.inc.php:140
0.1649 6676864 7. NewAttributesController->actionLoadAttributeValues() /var/www/daw/html/gxdev_2.7/src/GXEngine/Classes/SystemServices/Http/HttpViewController.inc.php:140
0.2002 6948672 8. xtc_getDownloads() /var/www/daw/html/gxdev_2.7/src/GXEngine/Controllers/NewAttributesController.inc.php:148