I migrated site from Magento version 18.104.22.168 to Magento version 2.3.1 afterwards when I open all product shows 404 page not found error in front-end
enable error reporting in boostrap.php file– Ronak RathodApr 23, 2019 at 13:52
Did you add htaccess?– Jeeva ChezhiyanApr 23, 2019 at 14:23
I have to fetch the same issue so Please, a check-In Database View is created or not If a View is not there so create view after indexing and flush... may your issue resolve... Happy Coding...
I had this issue and what fixed it for me was fixing the images, because they got corrupted in the migration.
please run this command:- php -dmemory_limit=-1 bin/magento catalog:images:resize Aug 19, 2019 at 10:44