Project ERROR: Unknown module(s) in QT: webkitwidgets

Question

I am porting code from qt4 to qt5. I added the following line to my .pro file, as suggested:

QT += webkitwidgets

However, when

Answer 1

You need to install the webkitwidgets library.

On Ubuntu, try this in a terminal:

sudo apt-get install libqt5webkit5-dev