I am attempting to use QPolarChart, so I use:
Qt Code: 
  1. #include <QtCharts/QPolarChart>
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However, I get an error: QtCharts/QPolarChart: no such file or directorty
I tried to install the library, thus:
sudo apt-get install -y libqt5charts5
but I still get the same error. I am using Kubuntu 18.04, Kdevelop 5.2.1 and Cmake. I am not using qmake, so its version number (4.8.7) is probably not relevant? Anything else I need to install?