Why is my GTK+ version clashes when i try to run an executable?

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Hello everyone,

I'm trying to run an executable in my code but suddenly this error pop up.

(view:26020): Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported Trace/breakpoint trap (core dumped)

I tried to include the gtk in my CMakeLists and my cpp file (for the executable) but still didn't work.

Here's my CMakeLists:

    cmake_minimum_required(VERSION 2.8.3)
project(a3_help)

## Find catkin macros and libraries
## if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz)
## is used, also find other catkin packages
find_package(catkin REQUIRED COMPONENTS
  cv_bridge
  image_transport
  message_generation
  roscpp
  sensor_msgs
  std_msgs
  OpenCV
)

add_definitions( -DANALYSIS=ON )
##ADD_DEFINITIONS(${GTK_CFLAGS_OTHER})

## System dependencies are found with CMake's conventions
find_package(Boost REQUIRED COMPONENTS system signals)
##find_package(PkgConfig REQUIRED)
##pkg_check_modules(GTK REQUIRED gtk+-3.0)
##find_package(GTK2 2.6 REQUIRED gtk)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated -Wdeprecated-declarations")
set(CMAKE_CXX_FLAGS "-std=c++0x ${CMAKE_CXX_FLAGS}")

message ( STATUS " CMake C++ FLAGS ${CMAKE_CXX_FLAGS}")

find_package(OpenCV)
find_package(Eigen3 REQUIRED)

## Uncomment this if the package has a setup.py. This macro ensures
## modules and global scripts declared therein get installed
## See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html
# catkin_python_setup()

################################################
## Declare ROS messages, services and actions ##
################################################

## To declare and build messages, services or actions from within this
## package, follow these steps:
## * Let MSG_DEP_SET be the set of packages whose message types you use in
##   your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...).
## * In the file package.xml:
##   * add a build_depend tag for "message_generation"
##   * add a build_depend and a run_depend tag for each package in MSG_DEP_SET
##   * If MSG_DEP_SET isn't empty the following dependency has been pulled in
##     but can be declared for certainty nonetheless:
##     * add a run_depend tag for "message_runtime"
## * In this file (CMakeLists.txt):
##   * add "message_generation" and every package in MSG_DEP_SET to
##     find_package(catkin REQUIRED COMPONENTS ...)
##   * add "message_runtime" and every package in MSG_DEP_SET to
##     catkin_package(CATKIN_DEPENDS ...)
##   * uncomment the add_*_files sections below as needed
##     and list every .msg/.srv/.action file to be processed
##   * uncomment the generate_messages entry below
##   * add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...)

## Generate messages in the 'msg' folder
# add_message_files(
#   FILES
#   Message1.msg
#   Message2.msg
# )

## Generate services in the 'srv' folder
add_service_files(
   FILES
   RequestGoal.srv
)

## Generate actions in the 'action' folder
# add_action_files(
#   FILES
#   Action1.action
#   Action2.action
# )

## Generate added messages and services with any dependencies listed here
generate_messages(
   DEPENDENCIES
   sensor_msgs#   std_msgs
)


###################################
## catkin specific configuration ##
###################################
## The catkin_package macro generates cmake config files for your package
## Declare things to be passed to dependent projects
## INCLUDE_DIRS: uncomment this if you package contains header files
## LIBRARIES: libraries you create in this project that dependent projects also need
## CATKIN_DEPENDS: catkin_packages dependent projects also need
## DEPENDS: system dependencies of this project that dependent projects also need
catkin_package(
#  INCLUDE_DIRS include
#  LIBRARIES a3_help
#  CATKIN_DEPENDS roscpp sensor_msgs std_msgs
#  DEPENDS system_lib
)

###########
## Build ##
###########

## Specify additional locations of header files
## Your package locations should be listed before other locations
# include_directories(include)

include_directories(
  include
  ${catkin_INCLUDE_DIRS}
  ${EIGEN3_INCLUDE_DIR}
  ${OpenCV_INCLUDE_DIRS}
  ##${GTK_INCLUDE_DIRS}
)

## Declare a C++ library
# add_library(a3_help
#   src/${PROJECT_NAME}/a3_help.cpp
# )

## Add cmake target ...