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I guess this is the code snippet that generated the error

/** Load a YAML file using OpenCV **/
void Model::load(const std::string path)
{
    cv::Mat points3d_mat;

    cv::FileStorage storage(path, cv::FileStorage::READ);
    storage["points_3d"] >> points3d_mat;
    storage["descriptors"] >> descriptors_;

    points3d_mat.copyTo(list_points3d_in_);

    storage.release();

}

Now the only reason why this would fail with the given exception, is that the FileStorage location is not read correctly and thus the data inside the points3d_mat are not correct.

Could you start by providing an absolute path instead of using the path variable and see if that works?