errormagento2
I am getting this warning when im trying to add a product:
Warning: array_filter() expects parameter 1 to be array, string given in
/html/vendor/magento/module-configurable-product/Controller/Adminhtml/Product/Initialization/Helper/Plugin/Configurable.php on line 145
this is the code:
}
$extensionAttributes>setConfigurableProductLinks(array_filter($associatedProductIds));
}
I dont understand why.
I came across this and turned out to be an issue when you run integration tests at some point before running bin/magento setup:di:compile.
Integration tests generate some test modules in app/code/Magento which are then picked up by the setup:di:compile command.
I fixed this by removing the Magento folder from app/code.
if you are using magento2.3 you have to just change
type="fileUploader"
to
type="imageUploader"
in your ui compoent grid
this error is not regarding attribute creation ,it's mistake in custom ui component grid
Best Answer
I Found Solution after R&D On Magento database.
Login In your phpmyadmin
Go to your website database
Open "eav_attribute" table
Find Your multiselect "attribute_id"
Edit Row
If "backend_model" Column blank then paste this
Magento\Eav\Model\Entity\Attribute\Backend\ArrayBackend