Property 'enabled'' of object '.foobar' has no notify signal, is not bindable and is not constant, value updates in HTML will be broken!

[MyNameIsQt]

This project includes:

#include <QWebEngineView>
#include <QWebChannel>

wpubManager: undefined
I don't know where this error is occurring.
Is there a way to print the line number of that location in the JS console output?

The following error appears to be related to the 'QWebEngineView' or 'QWebChannel'. But I don't know how to fix this. What's wrong?
Property 'enabled'' of object '....' has no notify signal, is not bindable and is not constant, value updates in HTML will be broken!

[Axel Spoerl]

Please don't post pictures of text. Post your code directly, using the <> code tags.

The problem looks, as if channel.objects doesn't have a wpubManager object.

[MyNameIsQt]

I understand. From now on, we will not add photos and will display it as text. Thanks for your reply.