Tried to use that plugin with Vaadin 14, but failed to work. When I try to

Directory SizeReporter
1

Tried to use that plugin with Vaadin 14, but failed to work.
When I try to use it I get:
The type com.vaadin.ui.AbstractComponent cannot be resolved. It is indirectly referenced from required .class files

Any hints?

2

It only works up to Vaadin 8