I Upgraded my OTRS from 4.0.11 to the 5.0.10.

After the upgrade (which seemed to go through with no errors), I was able to log in and fetch emails etc.

However I started getting errors via email such as:

Subject:  Cron <otrs@ticket01> $HOME/bin/otrs.Scheduler.pl -w 1 >> /dev/null

Body:  /bin/sh: /opt/otrs/bin/otrs.Scheduler.pl: No such file or directory

They seemed to be coming from the Cron Daemon on my install so I looked at the crontab and found that the 3 different email I was getting were all being called from the Crontab.

I have commented out the 3 that I was getting emails from (Scheduler, GenericAgent and PostmasterMailbox)

I reread the upgrading web page:

https://otrs.github.io/doc/manual/admin/5.0/en/html/upgrading.html

It doesn’t show anywhere that I am supposed to clear or comment out the system cron jobs.

Am I correct in that I am supposed to clear all cron jobs from the System Crontab?

Thank You

Dennis