I get an errow when trying to import a template from the Zabbix Templates on Git Hub

[John_W]

I don't know what the fix for this error is.

[cyber]

Each item/trigger/value map/tempalte/tempalte group etc... has UUID in config. somthing like "uuid: a571c0d144b14fd4a87a9d9b2aa9fcd6" (taken from out-of-the-box NGINX template and is assigned to template group "Templates/Applications"). If you update a template, then an entity with same UUID is updated.
Your error says, that you seem to have one value map in your instance, which has same UUID... It is probably not in same template, otherwise it would be overwritten.
As thise UUID-s are not shown in UI, then you can search for the one directly in DB, there is a "valuemap" table. Just changing it does not seem a good idea, but if you find that duplicate, you can remove it, then import your required tempalte and then recreate that valuemap also, that shoudl give it a new UUID, so not matching with anything any more... But it is a strange case anyway... you have to look up which tampltes have this duplicate, which one would cause less headache ater if updating etc... and then decide which one you want to change/recreate etc... Hard to say here for others... I would keep UUID-s of out-of-the-box templates and recreate one in custom template, I think...

[John_W]

I think I'll just look for another template that discovers interfaces in Dell switches.