System : Ubuntu 18 Application : Magento2.3 PHP : 7.1
I have two indexer need to be reindex. I have update the indexer on the admin page but it is not work. I also use the following command on the server :
php bin/magento indexer.reindex
but the system reply "Command indexer.reindex" is not defined"
I have gone to the root directory and the cron is working.
I don't know what the problem is ?