After updating netxms, the service would not load.i noticed the mysql.ddr file is missing in the /usr/lib/x86_64-linux-gnu/netxms/dbdrv directory. I tried to reinstall Netxms with the command:     apt-get install netxms-server netxms-dbdrv-mysql 
This resulted in an error the netxms-dbdrv-mysql had no  installation candidate.
I then tried  netxms-dbdrv-mysql-dbg, this installed but did not work.
I tried building NetXMS on a new fresh server with the same results.
Not sure if the new compiled version is missing the mysql package?
			 
			
			
				use netxms-dbdrv-mariadb instead, it's compatible
			
			
			
				Great advice Alex, that worked Thank you!
For others reference I ran the command:
apt-get install netxms-server netxms-dbdrv-mariadb
Then changed my /etc/netxmsd.conf to reference mariadb (replaced mysql on line DBDriver)
Restarted the netxmsd service and now all running