Error when execute sudo php bin/magento setup:upgrade

Question

PHP Warning:  require(/var/www/html/magento2/bin/../app/bootstrap.php): failed to open stream: No such file or directory in /var/www/html/magento2/bin/magento on line 14

PHP Fatal error:  require(): Failed opening required '/var/www/html/magento2/bin/../app/bootstrap.php' (include_path='.:/usr/share/php') in /var/www/html/magento2/bin/magento on line 14

Error when execute sudo php bin/magento setup:upgrade

Answer 1

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Please make sure the file /var/www/html/magento2/app/bootstrap.php is available.

No such file or directory

This error indicates it is not.

Also make sure to set correct permission to your files as described:
https://devdocs.magento.com/guides/v2.3/install-gde/trouble/readiness/tshoot_rc_perms.html

With sudo this shouldn't be a problem, nevertheless I recommend not using super user.

Answer 2

Check the folders and files permissions.

Go to the core project folder and run the next commands:

find . -type f -exec chmod 644 {} \; && find . -type d -exec chmod 755 {} \; && find ./var -type d -exec chmod 777 {} \; && find ./pub/media -type d -exec chmod 777 {} \; && find ./pub/static -type d -exec chmod 777 {} \;

chmod 777 ./app/etc && chmod 644 ./app/etc/*.xml && chmod +x bin/magento