SimplePanel.add - Uncaught TypeError: Cannot read properties of undefined

[reubenfirmin]

When adding a custom component (ultimately inherited from a div) to a container that's not yet added to the dom:

Uncaught TypeError: Cannot read properties of undefined (reading 'get_parent_hy4reb_k$')
protoOf.addInternal_6ctbi9_k$   	SimplePanel.kt:113
protoOf.add_x3j28u_k$           	SimplePanel.kt:132
CanvasView                      	CanvasView.kt:87

This does not happen several lines up where I add a Main to the same container.

[rjaros]

Could you provide some source?

[rjaros]

From the stacktrace I would suspect you are trying to add a reference to some uninitialized or null object.