No Charts in Sitemap after Upgrade to 4.2

Setup, Configuration and Use Migration
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1

Hi,

I upgraded my openhab to 4.2 on my pi. Most thinks works fine. Only the Charts in the Sitemaps are empty. I use them for groups of items.

For example temperatures:

{
        "component": "Chart",
        "config": {
          "icon": "temperature",
          "label": "Temperaturverlauf",
          "item": "temperatures",
          "period": "W"
        }
      },

Basic UI in webbrowser has the same behaviour.

Screenshot_20240721-170106
Screenshot_20240721-1701061080×2400 237 KB

“Analyse” of one of the items is empty as well.

Worked after first setup so I have not much experience with this.

Any idea?

Thanks.

2

I saw something in the log. I will try to fix the access rights.

2024-07-21 17:30:13.951 [ERROR] [d4j.internal.RRD4jPersistenceService] - Could not create rrd4j database file '/var/lib/openhab/persistence/rrd4j/ElectricityMeter_Gesamtverbrauch.rrd': Invalid file header. File [/var/lib/openhab/persistence/rrd4j/ElectricityMeter_Gesamtverbrauch.rrd] is not a RRD4J RRD file
3

Fix permissions did dot work. To speed thinks up, I Just deleted the files. Now it is working fine again.

I hope my post helps users with the same problem. Otherwise just ignore it.