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pythonqmlpyside6

Error: QQmlApplicationEngine failed to load component "Network problem"


I'm new to qml and python This is the code and error I get:

Error:

QQmlApplicationEngine failed to load component
c:%5CUsers%5Cpcmcb%5COneDrive%5CDesktop%5Capp%5Capp%5Cqml/main.qml: Network error

main.py:

mport sys
import os

from PySide6.QtGui import QGuiApplication
from PySide6.QtQml import QQmlApplicationEngine


if __name__ == "__main__":
app = QGuiApplication(sys.argv)
engine = QQmlApplicationEngine()
engine.load(os.path.join(os.path.dirname(__file__), "qml/main.qml"))


if not engine.rootObjects():
    sys.exit(-1)
sys.exit(app.exec_())

main.qml:

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Controls 2.15
import QtQuick.Controls.Material 2.15

ApplicationWindow{
    id: window
    width: 400
    height: 580
    visible: true
    title: qsTr("Login Page")
}

When I try to run the code it gives me the error that I typed above


Solution

  • load() method requires a QUrl so passing it a string can cause problems, change to:

    import os
    from pathlib import Path
    import sys
    
    from PySide6.QtCore import QCoreApplication, Qt, QUrl
    from PySide6.QtGui import QGuiApplication
    from PySide6.QtQml import QQmlApplicationEngine
    
    CURRENT_DIRECTORY = Path(__file__).resolve().parent
    
    
    def main():
        app = QGuiApplication(sys.argv)
    
        engine = QQmlApplicationEngine()
    
        filename = os.fspath(CURRENT_DIRECTORY / "qml" / "main.qml")
        url = QUrl.fromLocalFile(filename)
    
        def handle_object_created(obj, obj_url):
            if obj is None and url == obj_url:
                QCoreApplication.exit(-1)
    
        engine.objectCreated.connect(handle_object_created, Qt.QueuedConnection)
        engine.load(url)
    
        sys.exit(app.exec())
    
    
    if __name__ == "__main__":
        main()