void ShowErrorMessage(VuforiaInitError errorCode)
    {
        switch (errorCode)
        {
        /* case VuforiaInitError.EXTERNAL_DEVICE_NOT_DETECTED:
         *  mErrorMessage =
         *      "Failed to initialize Vuforia because this " +
         *      "device is not docked with required external hardware.";
         *  break;*/
        case VuforiaInitError.LICENSE_CONFIG_MISSING_KEY:
            mErrorMessage =
                "Vuforia App Key is missing. \n" +
                "Please get a valid key, by logging into your account at " +
                "developer.vuforia.com and creating a new project.";
            break;

        case VuforiaInitError.LICENSE_CONFIG_INVALID_KEY:
            mErrorMessage =
                "Vuforia App key is invalid. \n" +
                "Please get a valid key, by logging into your account at " +
                "developer.vuforia.com and creating a new project. \n\n" +
                GetKeyInfo();
            break;

        case VuforiaInitError.LICENSE_CONFIG_NO_NETWORK_TRANSIENT:
            mErrorMessage = "Unable to contact server. Please try again later.";
            break;

        case VuforiaInitError.LICENSE_CONFIG_NO_NETWORK_PERMANENT:
            mErrorMessage = "No network available. Please make sure you are connected to the Internet.";
            break;

        case VuforiaInitError.LICENSE_CONFIG_KEY_CANCELED:
            mErrorMessage =
                "This App license key has been cancelled and may no longer be used. " +
                "Please get a new license key. \n\n" +
                GetKeyInfo();
            break;

        case VuforiaInitError.LICENSE_CONFIG_PRODUCT_TYPE_MISMATCH:
            mErrorMessage =
                "Vuforia App key is not valid for this product. Please get a valid key, " +
                "by logging into your account at developer.vuforia.com and choosing the " +
                "right product type during project creation. \n\n" +
                GetKeyInfo() + "\n\n" +
                "Note that Universal Windows Platform (UWP) apps require " +
                "a license key created on or after August 9th, 2016.";
            break;

        case VuforiaInitError.DEVICE_NOT_SUPPORTED:
            mErrorMessage = "Failed to initialize Vuforia Engine because this device is not supported.";
            break;

        case VuforiaInitError.PERMISSION_ERROR:
            mErrorMessage =
                "One or more permissions required by Vuforia Engine are missing or not granted by user.\n" +
                "For example, the user may have denied camera access to this app.\n" +
                "In this case, you can enable camera access in Settings:\n" +
                "Settings > Privacy > Camera > " + Application.productName + "\n" +
                "Also verify that the camera is enabled in:\n" +
                "Settings > General > Restrictions.";
            break;

        case VuforiaInitError.LICENSE_ERROR:
            mErrorMessage = "A valid license configuration is required.\n";
            break;

        case VuforiaInitError.INITIALIZATION:
        default:
            mErrorMessage = "Failed to initialize Vuforia Engine.";
            break;
        }

        mErrorMessage = "<color=red>" + errorCode.ToString().Replace("_", " ") + "</color>\n\n" + mErrorMessage;
        var errorTextConsole = mErrorMessage.Replace("<color=red>", "").Replace("</color>", "");

        Debug.LogError("Vuforia initialization failed: " + errorCode + "\n\n" + errorTextConsole);
        MessageBox.DisplayMessageBox(ERROR_TITLE, mErrorMessage, true, OnErrorDialogClose);
    }