search

grafana / piechart-panel

Pie Chart Panel Plugin
MIT License
151 stars 101 forks source link

TypeError: Cannot read property 'length' of undefined #260

Open chenhb-zte opened 3 years ago

chenhb-zte commented 3 years ago

it crashed, report the issue "TypeError: Cannot read property 'length' of undefined". querys were working, switched to 'Bar gauge' panel, it could work normally.

Please help me, thanks

nicklasjepsen commented 3 years ago

I am also getting this error/crash of the Grafana UI when using the Pie Chart.

SIM0N-F commented 3 years ago

Hello, I have this issue too, I use Grafana 7.3.1 and pie chart 1.6.1. This breack my Grafana UI Capture d’écran 2020-11-04 à 10 33 29

AlexanderGPY commented 3 years ago

i got same problem，This problem occurs when I add the second element to the pie chart and I can guarantee that my query is correct env: grafana 7.3.1

tewe commented 3 years ago

Duplicate of #217

ketul-kothari commented 3 years ago

My team is also facing the same problem. Interestingly, the charts are working with older version of grafana (< 7.0.5). Any version greater than this and they start breaking.

svkempf commented 3 years ago

Also same issue here :-( Grafana Version is 7.3.7

All fine in table view. After switching to Pie Chart the "Cannot read property 'length' " error comes up.

Upgrading to Grafana 7.4.3 changed the issue: Now no more error message but panel stays black.

My issue might also be related to this one as I'm using Azure Data Explorer: https://github.com/grafana/azure-data-explorer-datasource/issues/30