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

I got it to work by copying the webkit and webkitwidgets pri files from a previous installation, 5.5.

~/Qt/5.5/clang_64/mkspecs/modules/