Unable to add Performance Graph

Hi All,

and sorry for my English.

Checkmk Raw Edition 2.4.0p2

Following this document Dashboards I got stuck at this point Dashboards.

When I try to add a Graph as for image in the document i have:

and so i cannot select any graph that means that i receive an error saving the element.

It’s my first dashboard test, so no change in the options and i followed exactly the steps suggested.

Test_7_201 have the agent installed and it work fine.

Please can someone help me to understand what i missing?

Thanks in advance.

Best regards.

Massimo