TYPO3 Exception 1660215701

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TYPO3 13.4.18 - 26.09.2025

Warning

The type of property MyVendorMyExtensionDomainModelMyModel::pageoverride could not be identified because the property is defined as union or intersection type, therefore the desired value (0) cannot be mapped onto it. Make sure to use only a single type.

The Issue

The model had a setter, which accidently used bool instead of null for a not-set value

#[Lazy]
protected ?Page $pageoverride = null;

public function setPageoverride(Page|bool $pageoverride): void
{
    $this->pageoverride = $pageoverride;
}

Solution

- public function setPageoverride(Page|bool $pageoverride): void
+ public function setPageoverride(Page|bool $pageoverride): void