Ошибка qt с++

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include <QXmlSchemaValidator>
#include <QXmlSchema>
#include <QFile>
#include <QtDebug>
#include <QAbstractMessageHandler>
class MessageHandler : public QAbstractMessageHandler {
public:
    MessageHandler() : QAbstractMessageHandler(nullptr) {}

    QString statusMessage() const { return m_description; }
    int line() const { return m_sourceLocation.line(); }
    int column() const { return m_sourceLocation.column(); }

protected:
    void handleMessage(QtMsgType type, const QString &description,
                       const QUrl &identifier, const QSourceLocation &sourceLocation) override {
        Q_UNUSED(type);
        Q_UNUSED(identifier);
        m_description = description;
        m_sourceLocation = sourceLocation;
    }

private:
    QString m_description;
    QSourceLocation m_sourceLocation;
};

void validateXML(const QString &schemaPath, const QString &xmlPath) {
    QFile xsdFile(schemaPath);
    if (!xsdFile.open(QIODevice::ReadOnly)) {
        qDebug() << "Failed to open schema file.";
        return;
    }

    MessageHandler messageHandler;
    QXmlSchema schema;
    schema.setMessageHandler(&messageHandler);

    if (!schema.load(&xsdFile, QUrl::fromLocalFile(xsdFile.fileName()))) {
        qDebug() << "Schema loading failed.";
        qDebug() << "Error:" << messageHandler.statusMessage();
        qDebug() << "Line:" << messageHandler.line();
        qDebug() << "Column:" << messageHandler.column();
        return;
    }

    QFile xmlFile(xmlPath);
    if (!xmlFile.open(QIODevice::ReadOnly)) {
        qDebug() << "Failed to open XML file.";
        return;
    }

    QXmlSchemaValidator validator(schema);
    if (!validator.validate(&xmlFile, QUrl::fromLocalFile(xmlFile.fileName()))) {
        qDebug() << "XML validation failed.";
        qDebug() << "Error:" << messageHandler.statusMessage();
        qDebug() << "Line:" << messageHandler.line();
        qDebug() << "Column:" << messageHandler.column();
    } else {
        qDebug() << "XML is valid.";
    }
}
MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    validateXML("1.xsd","1.xml");
}

MainWindow::~MainWindow()
{
    delete ui;
}

ASSERT failure in virtual qulonglong QPatternist::Decimal::toUnsignedInteger() const: "It makes no sense to call this function, see Numeric::toUnsignedInteger().", file data\qdecimal.cpp, line 174