magento 2 Uncaught TypeError: Argument 2 passed to Magento\Catalog\Block\Product\ImageFactory::getLabel() must be of the type string

Question

In custom theme And category page show this error-

Fatal error: Uncaught TypeError: Argument 2 passed to Magento\Catalog\Block\Product\ImageFactory::getLabel() must be of the type string, null given, called in /var/www/html/.....

1 product is added that's why in image show "1 items".

Run all commands upgrade,indexing,caching,deploy,rename var folder still getting this error

Answer 1

Finally,I solved,the problem is etc/view.xml I didn't create while making custom theme.

When I add file (view.xml) at this location

app/design/frontend/Gbdistro/theme/etc/

The problem is solved.