mapboxgl dont work on raspberry pi

[miladTalaei]

hi guys i crosscompile Qt on raspberry pi with Ubuntu and i want to make a map with Qml and this is my code:

 Map {
        id:map
        anchors.fill: parent
        plugin: Plugin{
            id:myplug
            name:"mapboxgl"

            PluginParameter{
                name: "mapboxgl.access_token"
                value:"pk.eyJ1IjoibWlsYWRsb3ZlYm90aCIsImEiOiJjanZiaHlrZXEwczF5NDRxZnp0cnFseG9jIn0.CZjNPyoSnkUG4NaEzvb36A"
            }
        }
        zoomLevel: 12
        activeMapType: map.supportedMapTypes[map.supportedMapTypes.length-1]
        center: QtPositioning.coordinate(34.08, 49.70) 
        onSupportedMapTypesChanged: {
            for(var i=0; i<=map.supportedMapTypes.length-1; i++){
                console.log(i+":"+map.supportedMapTypes[i].name)
            }
        }

        onErrorChanged: {
            console.log(map.error)
        }

    }

and when i run it on ubuntu with GCC (5.7) every thing is ok l.
OutPut log:

qml: 0:mapbox://styles/mapbox/streets-v10
qml: 1:mapbox://styles/mapbox/basic-v9
qml: 2:mapbox://styles/mapbox/bright-v9
qml: 3:mapbox://styles/mapbox/outdoors-v10
qml: 4:mapbox://styles/mapbox/satellite-v9
qml: 5:mapbox://styles/mapbox/satellite-streets-v10
qml: 6:mapbox://styles/mapbox/light-v9
qml: 7:mapbox://styles/mapbox/dark-v9
qml: 8:mapbox://styles/mapbox/navigation-preview-day-v2
qml: 9:mapbox://styles/mapbox/navigation-preview-night-v2
qml: 10:mapbox://styles/mapbox/navigation-guidance-day-v2
qml: 11:mapbox://styles/mapbox/navigation-guidance-night-v2
Threaded rendering is not optimal in the Mapbox GL plugin.
[ INFO ]  "{QSGRenderThread}[General]: GPU Identifier: SVGA3D; build: RELEASE;  LLVM;"

but when i deployed on my raspberry pi i get nothing i got just a white screen and OutPut log is:

qml: 1
qrc:/main.qml:27:9: Unable to assign [undefined] to QDeclarativeGeoMapType*

the raspberry GCC version is 8.3.0.
so whats my wrong? help me soon as possible please.

[miladTalaei]

i change this line

 console.log(map.error)

to this

 console.log(map.errorString")

and i got error on string that says:

qml: The geoservices provider is not supported.

so i write this function to check which map provider are avaible for me on raspberry and i got this logs when i deployed on Rpi:

 function checkPlugins()
    {
        var plugins = Qt.createQmlObject ('import QtLocation 5.12; Plugin {}', mainwin)
        for (var i = 0; i<plugins.availableServiceProviders.length; i++) {
            var newPlugin = Qt.createQmlObject ('import QtLocation 5.12; Plugin {name: "' + plugins.availableServiceProviders[i]+ '"}', mainwin)
            if (newPlugin.supportsMapping()){
                console.log(newPlugin.name+" is Avaible.")
            }
        }
    }

and this logs is when i run on Ubuntu:

qml: esri is Avaible.
qml: osm is Avaible.
qml: mapbox is Avaible.
qml: here is Avaible.
qml: itemsoverlay is Avaible.
qml: mapboxgl is Avaible. 

so what can i do to add mapboxgl on my Rpi3

[miladTalaei]

sorry guys i forgot to add the raspberry pi logs from checkPlugins so:

qml: here is Avaible.
qml: itemsoverlay is Avaible.
qml: osm is Avaible.
qml: mapbox is Avaible.
qml: esri is Avaible.

[miladTalaei]

please help me guys i need it ):

[CzarekECE]

@miladTalaei
Maybe it is problem with OpenGl support on RPI?