hello guys in my case when I want to run any command like 'bin/magento setup:upgrade && bin/magento cache:clean && bin/magento cache:flush ' or bin/magento setup:di:upgrade , it always shows met his error :
Warning: fopen(/var/www/html/myproject/web/var/cache//mage-tags/mage---a0a_CONFIG): failed to open stream: Permission denied in /var/www/html/myproject/web/vendor/colinmollenhour/cache-backend-file/File.php on line 646
can anyone tell me how to solve this problem please ?