error in rosmaking lsd_slam_viewer

[aayushi363]

while making lsd_slam the following error occur

CMakeFiles/videoStitch.dir/src/main_stitchVideos.cpp.o: In function dilate(int, char**)': main_stitchVideos.cpp:(.text+0x151): undefined reference to cv::imread(cv::String const&, int)'
main_stitchVideos.cpp:(.text+0x159): undefined reference to cv::String::deallocate()' main_stitchVideos.cpp:(.text+0x181): undefined reference to cv::imread(cv::String const&, int)'
main_stitchVideos.cpp:(.text+0x189): undefined reference to cv::String::deallocate()' main_stitchVideos.cpp:(.text+0x302): undefined reference to cv::imwrite(cv::String const&, cv::_InputArray const&, std::vector<int, std::allocator > const&)'
main_stitchVideos.cpp:(.text+0x30a): undefined reference to cv::String::deallocate()' main_stitchVideos.cpp:(.text+0x39e): undefined reference to cv::fastFree(void*)'
main_stitchVideos.cpp:(.text+0x426): undefined reference to cv::fastFree(void*)' main_stitchVideos.cpp:(.text+0x627): undefined reference to cv::Mat::deallocate()'
main_stitchVideos.cpp:(.text+0x636): undefined reference to cv::Mat::deallocate()' main_stitchVideos.cpp:(.text+0x66a): undefined reference to cv::String::deallocate()'
main_stitchVideos.cpp:(.text+0x67c): undefined reference to cv::String::deallocate()' main_stitchVideos.cpp:(.text+0x692): undefined reference to cv::String::deallocate()'

My cmakelist.txt is file is given below

cmake_minimum_required(VERSION 3.0.2)
project(lsd_slam_viewer)
include($ENV{ROS_ROOT}/core/rosbuild/rosbuild.cmake)
include_directories(${OpenCV_INCLUDE_DIR})
find_package( OpenCV COMPONENTS core imgproc highgui imgcodecs REQUIRED )
LINK_DIRECTORIES("/usr/local/lib")

set(ROS_BUILD_TYPE Release)

rosbuild_init()

ADD_SUBDIRECTORY(${PROJECT_SOURCE_DIR}/thirdparty/Sophus)

set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/cmake)

find_package(OpenGL REQUIRED)
set(QT_USE_QTOPENGL TRUE)
set(QT_USE_QTXML TRUE)
find_package(QGLViewer REQUIRED)
find_package(Eigen3 REQUIRED)
include_directories(${QT_INCLUDES} ${EIGEN3_INCLUDE_DIR} ${QGLVIEWER_INCLUDE_DIR})
rosbuild_find_ros_package(dynamic_reconfigure)
include(${dynamic_reconfigure_PACKAGE_PATH}/cmake/cfgbuild.cmake)
gencfg()
find_library(-lopencv_core RREQUIRED)
find_library(-lopencv_imgproc RREQUIRED)
find_library(-lopencv_highgui RREQUIRED)
find_library(-lopencv_imgcodecs RREQUIRED)

rosbuild_genmsg()

rosbuild_check_for_sse()
set(CMAKE_CXX_FLAGS
"${SSE_FLAGS}"
)

set(SOURCE_FILES
src/PointCloudViewer.cpp
src/KeyFrameDisplay.cpp
src/KeyFrameGraphDisplay.cpp
src/settings.cpp
)

set(HEADER_FILES
src/PointCloudViewer.h
src/KeyFrameDisplay.h
src/KeyFrameGraphDisplay.h
src/settings.h
)

include_directories(
${PROJECT_SOURCE_DIR}/thirdparty/Sophus
)

rosbuild_add_executable(viewer src/main_viewer.cpp ${SOURCE_FILES} ${HEADER_FILES})

target_link_libraries(viewer ${QGLViewer_LIBRARIES} ${QT_LIBRARIES} ${QGLVIEWER_LIBRARY} GL glut GLU)

rosbuild_link_boost(viewer thread)

rosbuild_add_executable(videoStitch src/main_stitchVideos.cpp)