why my app that run correctly in mingw debug mode can not build in for android device?

stackprogramer

hi , i designed a simple app,when i tested it debug mode mingw,it work correctly and every thing is nice.with no errors and no warning.
now i want to build to android apk:
but when android in emulator works :it returns:please see

W/EGL_emulation( 1834): eglSurfaceAttrib not implemented
D/OpenGLRenderer( 1834): Enabling debug mode 0
W/Qt      ( 1834): qml\qqmlapplicationengine.cpp:133 (void QQmlApplicationEnginePrivate::_q_finishLoad(QObject*)): QQmlApplicationEngine failed to load component
W/Qt      ( 1834): qml\qqmlapplicationengine.cpp:134 (void QQmlApplicationEnginePrivate::_q_finishLoad(QObject*)): qrc:///main.qml:12 module "QtMultimedia" plugin "declarative_multimedia" not found
W/Qt      ( 1834):

my app before start only show a white page and nothing.....!!!!!!
why between debug mingw and android is difference?

this is source first page:


import QtQuick 2.2
import QtQuick.Window 2.1
import QtGraphicalEffects 1.0
import QtMultimedia 5.0
Window{

    id:menuspiral
    visible: true
    color:"#000"
    title:"Spiral Menu"
    minimumHeight:Screen.desktopAvailableHeight/1.2
    maximumHeight: Screen.desktopAvailableHeight/1.2
    minimumWidth: Screen.desktopAvailableHeight/2
    maximumWidth: Screen.desktopAvailableHeight/2
    x: (Screen.desktopAvailableWidth-width)/2
    y: (Screen.desktopAvailableHeight-height)/2

    Loader { id: pageLoader }

    /*we define the fonts that is used in game here*/

    FontLoader {     id:gamefont
        source: "font/gamecuben.ttf"
    }

    FontLoader {
        id:gamefont2
        source: "font/starcraft.ttf"
    }

    Image {


        property string numberFolder:Math.ceil((Math.random()*4))
        source: "img/Fruit"+numberFolder+"th/F"+numberFolder+" ("+Math.ceil(Math.random()*9)+").svg"
        y: (menuspiral.height)/2
        width: 100; height: 100

        NumberAnimation on x {
            duration:1600
            loops: Animation.Infinite
            running:true
            from: 0; to:500
        }
    }
    Text {color:"white"
        style: Text.Outline;
        styleColor: "red"
        font.family: gamefont2.name
        font.pointSize:18
        x: (menuspiral.width)/5
        y: (menuspiral.height)/5

        text:"<b>Spiral </b>Game v1.0";
//        Audio {
//            id: playMusic
//            source: "1.mp3"
//        }

        anchors.centerIn: parent
        MouseArea {
            anchors.fill: parent
            onClicked: {

                pageLoader.source = "main.qml"

            }
//            onPressed:  { playMusic.play() }
        }
    }

    Text {color:"white"
        style: Text.Outline;
        styleColor: "red"
        font.family: gamefont2.name
        font.pointSize:16
        x: (menuspiral.width)/5
        y: (menuspiral.height)/1.8
        text:"<b>About</b>";


        MouseArea {
            anchors.fill: parent
            onClicked: {

                pageLoader.source = "about.qml"

            }

        }
    }


    Text {color:"white"
        style: Text.Outline;
        styleColor: "red"
        font.family: gamefont2.name
        font.pointSize:16
        x: (menuspiral.width)/5
        y: (menuspiral.height)/1.6
        text:"<b>Help</b>";


        MouseArea {
            anchors.fill: parent
            onClicked: {


                pageLoader.source = "help.qml"

            }

        }
    }





}

mvuori

A hint for the future. When you have a similar issue, find the most essential and unique sounding part of the error and search on Google with the environment name and Qt, that is in this case:
qt android declarative_multimedia

...And in a second, Google gives you a list of links. In this case the first one reads:
[Solved] Android: QtMultimedia Problem | Qt Forum
module "QtMultimedia" plugin "declarative_multimedia" not found ... Though at project following lines are included but show error at android emulator but not ...
https://forum.qt.io/topic/35629/solved-android-qtmultimedia-problem/3

Doesn't it sound familiar?

And another thing, in the discussion they mention beta versions several times. Always try with the latest non-beta version and also tell what that is...

stackprogramer

thanks for reply,but this way

add QT += multimedia

my problem is not solved. i uses stable version. it return same before.
my Qt 5.2.1 .

stackprogramer

finally i deleted

import QtGraphicalEffects 1.0
import QtMultimedia 5.0

now it worked and built successfully .

and apk file that i created.
http://www.mediafire.com/download/1zcylimkzj2idu2/spiralmyappcompiled4android.apk
thanks for attention