Исключение не обработано

#include <iostream>
#include "opencv2/core.hpp"
#include "opencv2/highgui.hpp"
 
using namespace std;
using namespace cv;
 
int main(int argv,char* argc)
{
    Mat A;
    A = Mat::zeros(500,500,CV_8U);
    namedWindow("x",WINDOW_AUTOSIZE);
    imshow("x", A);
    waitKey(0);
    return 0;
}

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
 
using namespace cv;
using namespace std;
 
int main( int argc, char** argv )
{
    if( argc != 2)
    {
     cout <<" Usage: display_image ImageToLoadAndDisplay" << endl;
     return -1;
    }
 
    Mat image;
    image = imread(argv[1], CV_LOAD_IMAGE_COLOR);   // Read the file
 
    if(! image.data )                              // Check for invalid input
    {
        cout <<  "Could not open or find the image" << std::endl ;
        return -1;
    }
 
    namedWindow( "Display window", WINDOW_AUTOSIZE );// Create a window for display.
    imshow( "Display window", image );                   // Show our image inside it.
 
    waitKey(0);                                          // Wait for a keystroke in the window
    return 0;
}