Problem installing Qt Charts

[p3c0]

@JosephC Add QT += charts in your .pro file and Run qmake.

[JosephC]

@p3c0
I have done that. That's my problem. Here is the answer:
error: Unknown module(s) in QT: charts

[jsulm]

@JosephC Did you install QtCharts after updating to 5.7? It looks like it is not installed by default and is listed as a module under Qt5.7 node in Qt Maintenance Tool.

[pauledd]

I have the same problem. I just downloaded qt-everywhere-opensource-src-5.7.0.tar.gz, then I did:

./configure --prefix=$PWD/qtbase -opensource -nomake tests -confirm-license -c++std c++11 -qt-sql-sqlite -plugin-sql-sqlite -system-sqlite
make -j4
make install

run through without issues.
Then I added the base path manualy to QT Versions

then set it to default:

my project file:

#-------------------------------------------------
#
# Project created by QtCreator 2016-09-26T09:00:37
#
#-------------------------------------------------

QT       += core gui charts

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = fileDialogTest
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

when I build it I get "cannot find -lQt5Charts":

09:43:45: Starting: "/usr/bin/make" 
g++ -Wl,-rpath,/home/paul/build/qt-everywhere-opensource-src-5.7.0/qtbase/lib -o fileDialogTest main.o mainwindow.o moc_mainwindow.o   -L/home/paul/build/qt-everywhere-opensource-src-5.7.0/qtbase/lib -lQt5Charts -lQt5Widgets -lQt5Gui -lQt5Core -lGL -lpthread 
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lQt5Charts
Makefile:318: recipe for target 'fileDialogTest' failed
collect2: error: ld returned 1 exit status
make: *** [fileDialogTest] Error 1
09:43:45: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project fileDialogTest (kit: QT 5.7.0)
When executing step "Make"
09:43:45: Elapsed time: 00:00.

When I sear for it in the base dir I get:

find build/qt-everywhere-opensource-src-5.7.0/qtbase/ -name '*Charts*'
build/qt-everywhere-opensource-src-5.7.0/qtbase/lib/cmake/Qt5Charts
build/qt-everywhere-opensource-src-5.7.0/qtbase/lib/cmake/Qt5Charts/Qt5ChartsConfigVersion.cmake
build/qt-everywhere-opensource-src-5.7.0/qtbase/lib/cmake/Qt5Charts/Qt5ChartsConfig.cmake
build/qt-everywhere-opensource-src-5.7.0/qtbase/lib/libQt5Charts.prl
build/qt-everywhere-opensource-src-5.7.0/qtbase/lib/pkgconfig/Qt5Charts.pc
build/qt-everywhere-opensource-src-5.7.0/qtbase/lib/libQt5Charts.la
build/qt-everywhere-opensource-src-5.7.0/qtbase/include/QtCharts
build/qt-everywhere-opensource-src-5.7.0/qtbase/include/QtCharts/QtChartsDepends
build/qt-everywhere-opensource-src-5.7.0/qtbase/qml/QtCharts

did I miss something?

[pauledd]

I solved my problem. I had to extra build QtCharts from the source directory so it does not get built and installed by default configure/build of qtbase:

cd qt-everywhere-opensource-src-5.7.0/qtcharts
../qtbase/bin/qmake
make -j4
make install

After that I was able to build my Project.

[jsulm]

@pauledd Do you really need to build Qt by yourself? Qt 5.7 binaries already contain QtCharts - you can install both using Qt Maintenance Tool.

[pauledd]

@jsulm I used no binaries, I compiled everything from source. But it still doesnt work. I cant create a QLineSeries Object.

../fileDialogTest/mainwindow.cpp:27:2: error: 'QLineSeries' was not declared in this scope
  QLineSeries *a = new QLineSeries();
  ^
../fileDialogTest/mainwindow.cpp:27:2: note: suggested alternative:
In file included from ../../build/qt-everywhere-opensource-src-5.7.0/qtcharts/include/QtCharts/qlineseries.h:1:0,
                 from ../../build/qt-everywhere-opensource-src-5.7.0/qtcharts/include/QtCharts/QtCharts:28,
                 from ../fileDialogTest/mainwindow.cpp:4:
../../build/qt-everywhere-opensource-src-5.7.0/qtcharts/include/QtCharts/../../src/charts/linechart/qlineseries.h:41:24: note:   'QtCharts::QLineSeries'
 class QT_CHARTS_EXPORT QLineSeries : public QXYSeries

I will try the binaries now.

[pauledd]

Maybe I choose the wrong license? I just read that QtCharts is available in GPLV2/GPLV3 but NOT in LGPLV3.

[pauledd]

I tried the binary package but I get the same error.
project file:

SOURCES += \
    main.cpp
CONFIG += qt 
QT += core gui charts

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

main.cpp:

#include <QApplication>
#include <QLineSeries>
#include <QChartView>
int main(int argc, char **argv){
	QApplication app(argc,argv);
	
	QLineSeries *ls = new QLineSeries;
	
	return app.exec();
}

output:

11:29:40: Starting: "/usr/bin/make" 
g++ -c -pipe -g -std=gnu++11 -D_REENTRANT -Wall -W -fPIC -DQT_CHARTS_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_QML_DEBUG -I../chartsTest2 -I. -I/home/paul/store/build/Qt5.7.0/5.7/gcc_64/include -I/home/paul/store/build/Qt5.7.0/5.7/gcc_64/include/QtCharts -I/home/paul/store/build/Qt5.7.0/5.7/gcc_64/include/QtWidgets -I/home/paul/store/build/Qt5.7.0/5.7/gcc_64/include/QtGui -I/home/paul/store/build/Qt5.7.0/5.7/gcc_64/include/QtCore -I. -I/home/paul/store/build/Qt5.7.0/5.7/gcc_64/mkspecs/linux-g++ -o main.o ../chartsTest2/main.cpp
../chartsTest2/main.cpp: In function 'int main(int, char**)':
../chartsTest2/main.cpp:7:2: error: 'QLineSeries' was not declared in this scope
  QLineSeries *ls = new QLineSeries;
  ^
../chartsTest2/main.cpp:7:2: note: suggested alternative:
In file included from /home/paul/store/build/Qt5.7.0/5.7/gcc_64/include/QtCharts/QLineSeries:1:0,
                 from ../chartsTest2/main.cpp:2:
/home/paul/store/build/Qt5.7.0/5.7/gcc_64/include/QtCharts/qlineseries.h:41:24: note:   'QtCharts::QLineSeries'
 class QT_CHARTS_EXPORT QLineSeries : public QXYSeries
                        ^
../chartsTest2/main.cpp:7:15: error: 'ls' was not declared in this scope
  QLineSeries *ls = new QLineSeries;
               ^
../chartsTest2/main.cpp:7:24: error: 'QLineSeries' does not name a type
  QLineSeries *ls = new QLineSeries;
                        ^
Makefile:658: recipe for target 'main.o' failed
make: *** [main.o] Error 1
11:29:41: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project chartsTest2 (kit: Desktop Qt 5.7.0 GCC 64bit)
When executing step "Make"
11:29:41: Elapsed time: 00:02.

[pauledd]

ok, after

#include <QtCharts>

I can compile it.

[eyllanesc]

add using namespace QtCharts;