problem with ColorDialog : plugin cannot be loaded for module "Qt.labs.platform" using qml

[qAminzzz]

hi, i used below code to use ColorDialog:

import QtQuick 2.2
import QtQuick.Controls 2.5
import Qt.labs.platform 1.1

ApplicationWindow
{
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    ColorDialog
    {
        id: colorDialog
        title: "Please choose a color"
        onAccepted: {
            console.log("You chose: " + colorDialog.color)
            Qt.quit()
        }
        onRejected: {
            console.log("Canceled")
            Qt.quit()
        }
        Component.onCompleted: visible = true
    }
}

and i got these errors:

• QQmlApplicationEngine failed to load component*
• qrc:/main.qml:3:1: plugin cannot be loaded for module "Qt.labs.platform": Cannot load library C:\Qt\5.15.0\mingw81_64\qml\Qt\labs\platform\qtlabsplatformplugin.dll: The specified procedure could not be found.

im grateful for any help

[qAminzzz]

@qAminzzz
hi all again, i copied Qt5Widgets.dll in build directory and it worked

[JonB]

@qAminzzz
Does not sound like a good solution: you should never need to copy Qt-supplied libraries to your application's build directory, they are supposed to be found in the system areas.

[qAminzzz]

This post is deleted!

[qAminzzz]

@JonB so what i should to do? ):