Hi,
In a default installation and assigned the theme for the frontend and the backend, the following error occurs in the home: "Notice: Undefined index: #cache in Drupal\block\BlockViewBuilder::preRender() (line 236 of core/modules/block/src/BlockViewBuilder.php)."

If I configure another the theme, the error does not appear.

Thanks.

Comments

marklein created an issue.

rp7’s picture

rp7 commented

Was getting this error as well. Moving the breadcrumbs block to the header fixed it for me.

marklein’s picture

marklein commented

Hi @RaF7, thanks for the information, the error has disappeared, it can be a temporary solution...

Thanks!

Neil_Nand’s picture

Neil_Nand commented

This fix worked for me too, any idea why it happens or if there's a way of fixing it so it can still appear in the breadcrumbs section?