Qmake 错误：QT 中的未知模块：图表

Question

Am getting the error when I Run qmake on my application

Unknown module(s) in QT: charts 

I am using Qt Creator 4.8 (Enterprise) and Qt library 5.12 on Windows 7.

My .pro file has the following line:

QT += core gui charts

In my source file I include ChartView like this:

#include <QtCharts/QChartView>
...

However, when I run one of the demo examples that ships with QT and have a similar include, the program compiles and runs fine. The example am running is found here:

..Qt5.12.0\Examples\Qt-5.12.0\charts\donutchart

What am I missing in my application?

Regards,

Paul

Answer 1

To resolve this I had to re-install the Qt library. Actually I decided to upgrade to Qt 5.13.2, now the program compiles and runs well.

Things to note:

The MaintenanceTool does not work very well, I think it is still work-in-progress. I managed to remove QtCharts module for Qt 5.12 using the tool, however, when I tried to use it to re-install the module, the Maintenance tool could not find the QtCharts library. I was eventually forced to remove the entire 5.12.0 library and install 5.13.2. The program now compiles well.