Qt qml在开发板上报错QQmlApplicationEngine failed to load component

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一、QQmlApplicationEngine failed to load component

• 问题：QQmlApplicationEngine failed to load component报错，报错内容如下：

QML debugging is enabled. Only use this in a safe environment.
QQmlApplicationEngine failed to load component
qrc:/main.qml:-1 No such file or directory

• 解决方法：
  将main.cpp中的内容改成如下：

int main(int argc, char *argv[])
{
#if defined(Q_OS_WIN)
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
#endif

    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
	// 修改下面的路径
    engine.load(QUrl(QStringLiteral("file:../qml_video/main.qml"))); 
    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

参考：

1. linux qt qrc文件中 xxx.png图片无法加载的问题