Debug assertion failed with Open CV SIFT

int DoSift()
{
    string image2 ="G:/SIFT Test/Foods/f1.jpg";
    string image1 ="G:/SIFT Test/Foods/f2.jpg";

    Mat input = imread(image1, IMREAD_GRAYSCALE );
    Mat img_2 = imread( image2, IMREAD_GRAYSCALE );

    // const cv::Mat input = cv::imread("input.jpg", 0); //Load as grayscale

    cv::SiftFeatureDetector detector;
    std::vector<cv::keypoint> keypoints;
    detector.detect(input, keypoints);

    // Add results to image and save.
    cv::Mat output;
    cv::drawKeypoints(input, keypoints, output);`enter code here`
    cv::imwrite("sift_result.jpg", output);
   return Exit_Success(); //<- it happens here
}

void _Tidy()
{	// free all storage
    if (this->_Myfirst != pointer())
    {	// something to free, destroy and deallocate it
        this->_Orphan_all();
        _Destroy(this->_Myfirst, this->_Mylast);
        this->_Getal().deallocate(this->_Myfirst,
        this->_Myend - this->_Myfirst);**//--->......Here.....**
        this->_Myfirst = pointer();
        this->_Mylast = pointer();
        this->_Myend = pointer();
    }
}

**Debug assertion failed.
Program:...
File: f:\dd\vctools\ctr_bld\self_x86\crt\src\dbgheap.c
Line: 1322
Expression: _CrtIsValidHeapPointers(pUserData)**</cv::keypoint>