QLineSeries undeclared identifier

ivanicy

Hello,

I have the 5.7.0 Qt version and I am trying to do a graphic with QLineSeries. I had installed the QCharts extension and included the header <QLineSeries> but Qt doesn't recognize it. Someone knows what is happening?

Thank you very much!

Ratzz

@ivanicy
Show me what you tried?

ivanicy

Hello, thank you for answer me.

This is that I am trying. This type of graphic:

http://doc.qt.io/qt-5/qtcharts-linechart-example.html

but Qt doesn't recognize me the QLineSeries

Thank you

VRonin

in your .pro file add QT += charts and then rerun qmake
source: https://doc.qt.io/qt-5/qtcharts-index.html#getting-started

ivanicy

Thank you very much.

I have this line too, but the links you send me give me information to fix my error. I have to include <QtCharts> and it resolves my problem.

Thank you again!

SGaist

Hi,

Don't use the module wide include in production code. Include only what you use. That way you'll save on compile time.