when i try to use the duplicate and save product , magento throw me this error

Warning: file_put_contents(/var/www/html/Magento_2/presentation_folders_ca/var/cache//mage-tags/mage---32d_DB_PDO_MYSQL_DDL): failed to open stream: Permission denied in /var/www/html/Magento_2/presentation_folders_ca/vendor/colinmollenhour/cache-backend-file/File.php on line 691

what happen here?

1 Answer 1


Magento told you that you don't have permissions to write in /var/cache folder, please check what are the permission of the /var folder.

Overview of ownership and permissions Magento 2


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