我无法弄清楚这个异常以及如何解决这个问题

Question

我正在为我的项目提供这个例外，但我无法弄清楚它是什么。它使用C ++/Winrt和XAML在Winui3项目中。这是一个项目中的一些代码，如果我隔离了例外。我还评论了一些以前解决该问题的尝试。

#include "pch.h"
#include "MainWindow.xaml.h"
#if __has_include("MainWindow.g.cpp")
#include "MainWindow.g.cpp"
#include <opencv2\opencv.hpp>
#include <shlobj.h>
#include <winrt/Microsoft.UI.Dispatching.h>
#include <winrt\Windows.UI.Core.h>
#include <winrt\Windows.System.h>
#include <winrt/Windows.Foundation.h>
#endif

using namespace winrt;
using namespace Microsoft::UI::Xaml;
using namespace Microsoft::UI::Xaml::Controls;
using namespace Windows::Storage;
using namespace cv;
using namespace std;

// To learn more about WinUI, the WinUI project structure,
// and more about our project templates, see: ``http://aka.ms/winui-project-info``.

namespace winrt::OpenCVTestingSDK::implementation
{

MainWindow::MainWindow()
{
    InitializeComponent();
}

int32_t MainWindow::MyProperty()
{
    throw hresult_not_implemented();
}

void MainWindow::MyProperty(int32_t /* value */)
{
    throw hresult_not_implemented();
}

void MainWindow::myButton_Click(IInspectable const&, RoutedEventArgs const&)
{
    
   
    Mat picture_data = Mat(250, 100, CV_8UC3, Scalar(250, 0, 75));

    
    TCHAR mypicturespath[MAX_PATH];
    HRESULT result = SHGetFolderPath(NULL, CSIDL_MYPICTURES, NULL, SHGFP_TYPE_CURRENT, mypicturespath);

    wstring imagePathW = mypicturespath;
    string imagePath(imagePathW.begin(), imagePathW.end());

    bool imageCreated = cv::imwrite(imagePath + "\\CrazyImageName.png", picture_data);

    
    if (imageCreated) {
        myButton().Content(box_value(L"True"));
    }
    else {
        myButton().Content(box_value(L"False"));
    }
    
    //list<string> testListContents;

    //testListContents.push_back("test1");
    //testListContents.push_back("test2");
    //testListContents.push_back("test3");

    //testList().Items().Append(box_value(L"test1"));
    //testList().Items().Append(box_value(L"test2"));
    //testList().Items().Append(box_value(L"test2"));

    
    
    
    //hstring message = L"Hello developers!";

    //co_await winrt::resume_foreground(testList.Dispatcher());
    //testList().Items().Append(box_value(message));

    // Switch to the foreground thread associated with textblock.
    //co_await winrt::resume_foreground(testList.Dispatcher());

    //winrt::init_apartment();

    //auto processOp{ DoWorkAsync() };
    
    //winrt::Microsoft::UI::Xaml::Controls::ListView testList

    testList().Items().Append(box_value(L"test1"));
}

//winrt::Windows::Foundation::IAsyncAction MainWindow::DoWorkAsync() {
    //winrt::apartment_context ui_thread;
    //co_await resume_background();

    //co_await ui_thread;
    //testList().Items().Append(box_value(L"test1")); 
//}

void MainWindow::testList_SelectionChanged(Windows::Foundation::IInspectable const& sender, Microsoft::UI::Xaml::Controls::SelectionChangedEventArgs const& args)
{



}

}

XAML

<Window 
x:Class="OpenCVTestingSDK.MainWindow"
xmlns="``http://schemas.microsoft.com/winfx/2006/xaml/presentation``"
xmlns:x="``http://schemas.microsoft.com/winfx/2006/xaml``"
xmlns:local="using:OpenCVTestingSDK"
xmlns:d="``http://schemas.microsoft.com/expression/blend/2008``"
xmlns:mc="``http://schemas.openxmlformats.org/markup-compatibility/2006``"
mc:Ignorable="d">

    <Grid Grid.Column="1" Margin="40, 0, 40, 30">
        
        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
            <Button x:Name="myButton" Click="myButton_Click">Click Me</Button>
        </StackPanel>
    
    
        <Border Grid.RowSpan="2" Grid.Column="1" Margin="25, 0, 25, 0">
            <StackPanel x:Name="subsystemPanel" Orientation="Vertical">
                <TextBlock Style="{StaticResource Header}">Aircraft System</TextBlock>
                <ListView x:Name="testList"  SelectionMode="Single" SelectionChanged="testList_SelectionChanged" />
            </StackPanel>
        </Border>
    
    </Grid>

     </Window>

XAML.H

#pragma once 

#include "MainWindow.g.h"

namespace winrt::OpenCVTestingSDK::implementation
{
struct MainWindow : MainWindowT<MainWindow>
{
MainWindow();

        int32_t MyProperty();
        void MyProperty(int32_t value);
    
        void myButton_Click(Windows::Foundation::IInspectable const& sender, Microsoft::UI::Xaml::RoutedEventArgs const& args);
        void testList_SelectionChanged(Windows::Foundation::IInspectable const& sender, Microsoft::UI::Xaml::Controls::SelectionChangedEventArgs const& args);
    
        //winrt::Windows::Foundation::IAsyncAction DoWorkAsync();
    };

}

namespace winrt::OpenCVTestingSDK::factory_implementation
{
struct MainWindow : MainWindowT<MainWindow, implementation::MainWindow>
{
};
}

例外：异常在OpenCvTestingsDk.exe中以0x00007FFCF3784F69抛出：Microsoft C ++例外：Winrt :: Hresult_Error在存储器位置0x0000000000000000000000B32B4FDE58。

结果值：0x802b000a