Qt Charts and Data Visualization widgets

Question

I have installed Qt 5.7 in order to try Qt Charts and Qt Data Visualization but I cannot find new widgets neither in Qt Designer nor in Qt Creator. Any suggestions what should I

Answer 1

Just elaborating on Holger's answer for ubuntu, compile, in terminal using qmake and make (doesn't work in qt creator - you need qt chart development package installed, which I believe is not available at this point in time), the designer.pro file in /opt/Qt/5.7/Src/qtcharts/plugins/designer directory then, copy and paste the shared library into /opt/Qt/Tools/QtCreator/lib/Qt/plugins/designer directory, where /opt/Qt is the directory in which Qt is installed.