MIT App Inventor Chart Error

I tried to add a 'Chart' component to my app, but I got the following error when I tested the app on an iOS device:

Error from Companion: error: undefined variable. (irritants: yail/com.google.appinventor.components.runtime.Chart)

Which undefined variable is it talking about? I already initialized the bar chart values. I also searched online for a fix but could not find one.

https://doesappinventorrunonios.com/

Charts are not yet implemented for iOS.

Edit: i tried and it works in iPadOS

If you follow the link you can expand the color bars to see which features are completed.

Also search this board for 'faq charts'