I have a site in development that is currently running Drupal 8 beta 15. As it is on shared hosting without shell access, I'm planning on moving it to a VPS. Updating Drupal 8 via FTP is just far too annoying.
But when I tried to move the site to a new server I encountered a problem. The new server is running Ubuntu 14.04 with PHP 7 on it.
I installed the final Drupal 8 on the server, and then copied the sites, themes and modules folder from my beta site and restored the beta database on the new server.
But now I get the following error when trying to access the site:
PHP message: Uncaught PHP Exception InvalidArgumentException: "$max_age must be an integer" at /var/www/html/drupal/core/lib/Drupal/Core/Cache/CacheableMetadata.php line 81"
drush cr, but that didn't do anything. I also can't execute an updatedb, I get the following error then:
Error: Call to undefined function drupal_get_installed_schema_version() in /var/www/html/drupal/core/includes/install.inc on line 80 Error: Call to undefined function drupal_get_installed_schema_version() in drupal_load_updates() (line 80 of /var/www/html/drupal/core/includes/install.inc).
Any ideas on how to fix this particular error? Or alternatively, a better way to migrate my beta site that doesn't rely on shell access on the server?