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### C++ exception in cv::BFMatcher

I am having problems with the cv::BFMatcher when I try to perform the feature matching. I compute the descriptors with the xfeatures2D::SIFT descriptor. When I try to perform the matching the application output shows "Exception at 0x7ff833308b9c, code: 0xe06d7363: C++ exception, flags=0x1 (execution cannot be continued) (first chance) at f:\dd\vctools\crt_bld\self_64_amd64\crt\src\xthrow.cpp:13" The code is something like:

matchesltor.clear();
matchesrtol.clear();

cv::BFMatcher matcher(cv::NORM_L2);

ProcessedImageData *imageDataLeft = mImageDataMap.value(mapKeyList.at(m));
std::vector<cv::KeyPoint> tiePointsLeft = imageDataLeft->getTiepoints();
cv::Mat descriptorsLeft= imageDataLeft->getDescriptors();
ProcessedImageData *imageDataRight = mImageDataMap.value(mapKeyList.at(n));
std::vector<cv::KeyPoint> tiePointsRight = imageDataRight->getTiepoints();
cv::Mat descriptorsRight= imageDataRight->getDescriptors();

matcher.knnMatch(descriptorsLeft,descriptorsRight,matchesltor,2)
matcher.knnMatch(descriptorsRight,descriptorsLeft,matchesrtol,2)


The strange thing is that it work in a single qt project that only perform the tie point detection, tie point description and matching but when I try to join it in other project (same code, same compiler and same qt version) it shows that output message and the execution stop (the application does not break).