QtLocation fails to compile (latest stable branch)

wimvalcke

The issue is still the same with Qt 5.1.1

wimvalcke

Problem is solved by using Qt 5.2.0. It seems that Qt 5.1 cannot be used, probably due to the change of Javascript engine.

lauriane

Hi,
I downloaded Qt5.2.1. With the terminal "Qt 5.2.1 for Desktop (MinGW 4.8 32 bit)" I ran
@qmake
mingw32-make.exe install@

but I get this error:
@In file included from ....\include\QtPositioning\5.3.0/QtPositioning/private/qdoublevector2d_p.h:1:0,
from maps\qgeocameratiles.cpp:47:
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector2d_p.h: In constructor 'constexpr QDoubleVector2D::QDoubleVector2D(const QVector2D&)':
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector2d_p.h:76:93: error: call to non-constexpr function 'float QVector2D::x() const'
Q_DECL_CONSTEXPR explicit inline QDoubleVector2D(const QVector2D &vector) : xp(vector.x()), yp(vector.y()) {}
^
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector2d_p.h: In member function 'constexpr QDoubleVector2D::operator QVector2D() const':
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector2d_p.h:77:29: error: invalid return type 'QVector2D' of constexpr function 'constexpr QDoubleVector2D::operator QVector2D() const'
Q_DECL_CONSTEXPR inline operator QVector2D() const { return QVector2D(xp, yp); }
^
In file included from C:\Qt\Qt5.2.1\5.2.1\mingw48_32\include\QtGui/QVector2D:1:0,
from ....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector2d_p.h:57,
from ....\include\QtPositioning\5.3.0/QtPositioning/private/qdoublevector2d_p.h:1,
from maps\qgeocameratiles.cpp:47:
C:\Qt\Qt5.2.1\5.2.1\mingw48_32\include\QtGui/qvector2d.h:57:20: note: 'QVector2D' is not literal because:
class Q_GUI_EXPORT QVector2D
^
C:\Qt\Qt5.2.1\5.2.1\mingw48_32\include\QtGui/qvector2d.h:57:20: note: 'QVector2D' is not an aggregate, does not have a trivial default constructor, and has no constexpr constructor that is not a copy or move constructor
In file included from ....\include\QtPositioning\5.3.0/QtPositioning/private/qdoublevector3d_p.h:1:0,
from maps\qgeocameratiles.cpp:48:
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector3d_p.h: In constructor 'constexpr QDoubleVector3D::QDoubleVector3D(const QVector3D&)':
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector3d_p.h:75:93: error: call to non-constexpr function 'float QVector3D::x() const'
Q_DECL_CONSTEXPR explicit inline QDoubleVector3D(const QVector3D &vector) : xp(vector.x()), yp(vector.y()), zp(vector.z()) {}
^
In file included from ....\include\QtPositioning\5.3.0/QtPositioning/private/qdoublevector3d_p.h:1:0,
from maps\qgeocameratiles.cpp:48:
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector3d_p.h: In member function 'constexpr QDoubleVector3D::operator QVector3D() const':
....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector3d_p.h:76:29: error: invalid return type 'QVector3D' of constexpr function 'constexpr QDoubleVector3D::operator QVector3D() const'
Q_DECL_CONSTEXPR inline operator QVector3D() const { return QVector3D(xp, yp, zp); }
^
In file included from C:\Qt\Qt5.2.1\5.2.1\mingw48_32\include\QtGui/QVector3D:1:0,
from ....\include\QtPositioning\5.3.0/QtPositioning/private/../../../../../src/positioning/qdoublevector3d_p.h:57,
from ....\include\QtPositioning\5.3.0/QtPositioning/private/qdoublevector3d_p.h:1,
from maps\qgeocameratiles.cpp:48:
C:\Qt\Qt5.2.1\5.2.1\mingw48_32\include\QtGui/qvector3d.h:57:20: note: 'QVector3D' is not literal because:
class Q_GUI_EXPORT QVector3D
^
C:\Qt\Qt5.2.1\5.2.1\mingw48_32\include\QtGui/qvector3d.h:57:20: note: 'QVector3D' is not an aggregate, does not have a trivial default constructor, and has no constexpr constructor that is not a copy or move constructor
Makefile.Release:3503: recipe for target '.obj/release/qgeocameratiles.o' failed
mingw32-make[3]: *** [.obj/release/qgeocameratiles.o] Error 1
mingw32-make[3]: Leaving directory 'C:/Qt/Qt5.2.1/qtlocation/src/location'
mingw32-make[2]: *** [release-install] Error 2
Makefile:44: recipe for target 'release-install' failed
mingw32-make[1]: *** [sub-location-install_subtargets] Error 2
mingw32-make[2]: Leaving directory 'C:/Qt/Qt5.2.1/qtlocation/src/location'
Makefile:158: recipe for target 'sub-location-install_subtargets' failed
mingw32-make[1]: Leaving directory 'C:/Qt/Qt5.2.1/qtlocation/src'
makefile:52: recipe for target 'sub-src-install_subtargets' failed
mingw32-make: *** [sub-src-install_subtargets] Error 2
15:43:20: Le processus "C:\Qt\Qt5.2.1\Tools\mingw48_32\bin\mingw32-make.exe" s'est terminé avec le code 2.
Erreur lors de la compilation/déploiement du projet qtlocation (kit : Desktop Qt 5.2.1 MinGW 32bit)
Lors de l'exécution de l'étape "Make"@
And I don't know what went wrong.
Thanks,
Lauriane

JKSH

Hi lauriane,

Which features are you looking for? "Qt Positioning":http://qt-project.org/doc/qt-5/qtpositioning-index.html is already part of Qt 5.2

lauriane

Hi,
I was looking for Qt Location
In fact, I can't have marble work with Qt5, so I thought Qt Location could make the deal
Lauriane

JKSH

Which part of Qt Location? It has been split up. See the Qt Positioning link I posted.

Do you mean KDE Marble? It seems to be written for Qt 4, which has "incompatibilities with Qt 5":http://qt-project.org/doc/qt-5/portingguide.html

Try building with Qt 4 instead.

lauriane

I am trying with marble in parallel, but what I want is to display maps in my qml application.
I saw that with QtLocation I could display maps, and I wanted to try.
I saw that QtLocation was split into QtPositioning and QtLocation, it is the second one that I want.

lauriane

I remove the "Q_DECL_CONSTEXPR" in lines 76 and 77 of qdoublevector2d_p.h and in lines 75 and 76 of qdoublevector3d_p.h. This way, the compilation ended without error.
But my application is not running. In the .pro I added the line
@QT += location@

and main.qml is:
@import QtQuick 2.0
import QtLocation 5.0

Item{
width: 500
height: 500

Map{
    id: map
    anchors.fill: parent

    center: Coordinate{latitude: -27; longitude: 153}
    zoomLevel: map.minimumZoomLevel
}

}@
it get the error message:
@Coordinate is not a type
center: Coordinate{latitude: -27; longitude: 153}
^@

JKSH

"coordinate" is lowercase, and comes from Qt Positioning: http://qt-project.org/doc/qt-5/qml-coordinate.html

Keep in mind also that Qt Location is incomplete -- that is why it has not yet been released.

lauriane

Ok, thanks
It works if I write

@import QtQuick 2.0
import QtLocation 5.0
import QtPositioning 5.2

Item{
width: 500
height: 500

Location{
    id: location
    coordinate{latitude: -27; longitude: 153}
}
Map{
    id: map
    anchors.fill: parent
 
    center: location.coordinate
    zoomLevel: map.minimumZoomLevel
}

}
@

JKSH

Great! Happy coding :)