Undefined Array Key Warning in Version 1.6.5

[ThomasKettner]

We receive an error when editing notifications in version 1.6.5. Update to 1.7 is not an option due to other incompatibilities with haste 5.

https://github.com/inspiredminds/contao-event-registration/issues/21#issuecomment-1845316233

Contao 4.13./PHP 8.1

ErrorException: Warning: Undefined array key "tl_nc_language"

at vendor/terminal42/notification_center/classes/tl_nc_language.php:72 at NotificationCenter\tl_nc_language->generateWizardList() (vendor/terminal42/dcawizard/src/Widget/DcaWizard.php:183) at Terminal42\DcawizardBundle\Widget\DcaWizard->generate() (vendor/contao/core-bundle/src/Resources/contao/library/Contao/Widget.php:661) at Contao\Widget->generateWithError() (vendor/contao/core-bundle/src/Resources/contao/templates/backend/be_widget.html5:3) at include('/.../c413clean/vendor/contao/core-bundle/src/Resources/contao/templates/backend/be_widget.html5') (vendor/contao/core-bundle/src/Resources/contao/library/Contao/TemplateInheritance.php:108) at Contao\Widget->inherit() (vendor/contao/core-bundle/src/Resources/contao/library/Contao/Widget.php:608) at Contao\Widget->parse() (vendor/contao/core-bundle/src/Resources/contao/classes/DataContainer.php:796) at Contao\DataContainer->row() (vendor/contao/core-bundle/src/Resources/contao/drivers/DC_Table.php:1979) at Contao\DC_Table->edit() (vendor/contao/core-bundle/src/Resources/contao/classes/Backend.php:667) at Contao\Backend->getBackendModule() (vendor/contao/core-bundle/src/Resources/contao/controllers/BackendMain.php:168) at Contao\BackendMain->run() (vendor/contao/core-bundle/src/Controller/BackendController.php:49) at Contao\CoreBundle\Controller\BackendController->mainAction() (vendor/symfony/http-kernel/HttpKernel.php:163) at Symfony\Component\HttpKernel\HttpKernel->handleRaw() (vendor/symfony/http-kernel/HttpKernel.php:75) at Symfony\Component\HttpKernel\HttpKernel->handle() (vendor/symfony/http-kernel/Kernel.php:202) at Symfony\Component\HttpKernel\Kernel->handle() (web/index.php:44)

[planepix]

Same here. Contao 4.13.36, PHP 8.1, Hosting allinkl.

Error message as mentioned above, direct by clicking in the backend the error is: Call to a member function next() on array

[bildschirmartist]

Hello everyone, I can confirm the problem. It is related to the changed implementation of the dcaWizard version 3.0.0 (https://github.com/terminal42/contao-dcawizard). As a workaround you can set the version in composer.json to e.g. 2.7.4.:

"require": {
    [...]
    "terminal42/dcawizard": "2.7.4"
}

[aschempp]

fixed in 5d2dee1c0b759f60fa265be693107e28ab81d292