NOTE: Per https://www.drupal.org/project/drupal/releases/8.4.0, drupal8.4.x needs drush 8.1.12+ Method works but has theme issue. Better to use composer method instead. cd /var/www/sites/yourdrupal.com/ drush dl drupal-8 mv drupal-8.4.5 docroot composer install composer update composer require drush/drush drush si …

From Web Browser: generate 'drush uli' Go to /admin/reports/dblog From CLI: 1drush watchdog-show See https://drupal.stackexchange.com/questions/48645/how-to-show-admin-reports-dblog-in-terminal-cli

From drupal admin UI: Administration > Configuration > Development > Performance But will work only if you have drupal admin login. Otherwise, you need to install drush instead and do the 'drush cc all' from there. Some other options -> …

See https://pantheon.io/blog/five-steps-feeling-drupal-drush