1) Give a description of the problem
I’m trying to create a chart with WebCoRE but getting an error when I select the data source type. The error is “Error: Cannot get property ‘id’ on null object”
2) What is the expected behaviour?
I want to chart out the temperature set points and temperatures from each of my three Midea AC units. They’re controlled via Hubitat using the tomwpublic/hubitat_midea (https://github.com/tomwpublic/hubitat_midea) custom driver.
3) What is happening/not happening?
I get the error when I try to select “sensors” as the source type.
**4) Post a Green Snapshot of the piston!
5) Attach logs after turning logging level to Full
[app:273](http://172.23.1.114/logs#)2023-04-15 11:48:37.379 AM[error](http://172.23.1.114/logs#)java.lang.NullPointerException: Cannot get property 'id' on null object on line 872 (method deviceSelectionPage)