error in facec

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hi , i am getting error in facerecognizer in opencv 2.4.10. what should i do.

below is code :

Ptr<FaceRecognizer> learnCollectedFaces(const vector<Mat> preprocessedFaces, const vector<int> faceLabels, const string facerecAlgorithm)
{

    Ptr<FaceRecognizer> model;

    cout << "Learning the collected faces using the [" << facerecAlgorithm << "] algorithm ..." << endl;

    // Make sure the "contrib" module is dynamically loaded at runtime.
    // Requires OpenCV v2.4.1 or later (from June 2012), otherwise the FaceRecognizer will not compile or run!
    bool haveContribModule = initModule_contrib();
    if (!haveContribModule) {
        cerr << "ERROR: The 'contrib' module is needed for FaceRecognizer but has not been loaded into OpenCV!" << endl;
        exit(1);
    }

    // Use the new FaceRecognizer class in OpenCV's "contrib" module:
    // Requires OpenCV v2.4.1 or later (from June 2012), otherwise the FaceRecognizer will not compile or run!
    model = Algorithm::create<FaceRecognizer>(facerecAlgorithm);
    if (model.empty()) {
        cerr << "ERROR: The FaceRecognizer algorithm [" << facerecAlgorithm << "] is not available in your version of OpenCV. Please update to OpenCV v2.4.1 or newer." << endl;
        exit(1);
    }

    // Do the actual training from the collected faces. Might take several seconds or minutes depending on input!
    model->train(preprocessedFaces, faceLabels);

    return model;
}

error :

![image description](/upfiles/1424256649300074.png)