No matching function for call to QVBoxLayout::addWidget(QHBoxLayout*&)

Hi guys

I am trying to get the attached layout.
I get the following error:
"No matching function for call to QVBoxLayout::addWidget(QHBoxLayout*&)"
What am I doing wrong. I am very new to this. I have also attached the code.
Thanks
Nozdlax

Use addLayout() to add an inner layout (the addWidget is for widgets)