diff --git a/corelib/src/KeypointDetector.cpp b/corelib/src/KeypointDetector.cpp
deleted file mode 100644
index d0e06270..00000000
--- a/corelib/src/KeypointDetector.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2010-2011, Mathieu Labbe and IntRoLab - Universite de Sherbrooke
- *
- * This file is part of RTAB-Map.
- *
- * RTAB-Map is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * RTAB-Map is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with RTAB-Map.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "rtabmap/core/KeypointDetector.h"
-#include "rtabmap/core/VWDictionary.h"
-#include "utilite/ULogger.h"
-#include "utilite/UTimer.h"
-#include "utilite/UStl.h"
-#include "rtabmap/core/Parameters.h"
-#include "utilite/UConversion.h"
-#include <opencv2/imgproc/imgproc.hpp>
-//#include <opencv2/gpu/gpu.hpp>
-#include <opencv2/core/version.hpp>
-#if CV_MAJOR_VERSION >=2 and CV_MINOR_VERSION >=4
-#include <opencv2/nonfree/features2d.hpp>
-#endif
-
-#define OPENCV_SURF_GPU CV_MAJOR_VERSION >= 2 and CV_MINOR_VERSION >=2 and CV_SUBMINOR_VERSION>=1
-
-namespace rtabmap
-{
-
-
-
-}