"graph prototypes" and "already exists" error

[stewert]

Hi,

I'm new to Zabbix and I currently setup a zabbix test server for learning things about Zabbix.

I have created a template. Inside of the Template I have defined a "discovery rule":



with the filter:



For this discovery rule I have create an "Item prototype:



If I assign this template to my Host, this works fine and like expected. In "Monitoring" - "Latest data" I can see three new items for my three xfs-partitions which shows me the current free disk space. That's fine :-)

But now I want to add a "Graph prototype" to my discovery rule:



But if I open now the "Discovery" view of my host I get now the following error:



Also under "Monitoring" and "Graphs" the new graph was not shown for my host.

Any ideas whats going wrong here?

Many thanks,
Steffen

[stewert]

OK. After switching from Zabbix 4.0 (current version in the official debian 10 repository) to Zabbix 5.2 it works! :-)