Unable to include directories in CMake

[ghkraju]

Hi, I am trying to write a CMakeLists.txt for one of my project. Details about the versions are as follows:

Qt 5.5.1 (Ubuntu 16.04 distro Version)
CMake 3.5.1

cmake_minimum_required(VERSION 2.8.3)

project(aps_ros)

find_package(catkin REQUIRED COMPONENTS rviz roscpp)

find_package(VTK REQUIRED)

catkin_package()

set(VTK_INCLUDE_DIRS /usr/local/include/vtk-7.0/)
set(VTK_LIBRARY_DIRS /usr/local/lib)
set(CMAKE_INCLUDE_CURRENT_DIR ON)

set(QT_INCLUDES /usr/include/x86_64-linux-gnu/qt5/)
set(QT_LIBRARIES /usr/lib/x86_64-linux-gnu)

include_directories(${catkin_INCLUDE_DIRS} ${VTK_INCLUDE_DIRS} ${QT_INCLUDES} ${QT_INCLUDES}/QtCore)

link_directories(${catkin_LIBRARY_DIRS} ${VTK_LIBRARY_DIRS})

set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)

if(rviz_QT_VERSION VERSION_LESS "5")
message(STATUS "Using Qt4 based on the rviz_QT_VERSION: ${rviz_QT_VERSION}")
find_package(Qt4 ${rviz_QT_VERSION} EXACT REQUIRED QtCore QtGui)
include(${QT_USE_FILE})
else()
message(STATUS "Using Qt5 based on the rviz_QT_VERSION: ${rviz_QT_VERSION}")
find_package(Qt5 ${rviz_QT_VERSION} EXACT REQUIRED Core Gui OpenGL Widgets)
endif()

add_definitions(-DQT_THREAD_SUPPORT)

set(HEADER_FILES configdialog.h vwidget.h loggerwidget.h mainwindow.h)
set(SOURCE_FILES configdialog.cpp vwidget.cpp loggerwidget.cpp mainwindow.cpp main.cpp)
set(WINDOW_FORMS configdialog.ui mainwindow.ui)

qt5_wrap_ui(MOC_UI_FILES ${WINDOW_FORMS})

qt5_wrap_cpp(SRC_FILES ${SOURCE_FILES})

add_executable(aps ${SRC_FILES} ${MOC_UI_FILES} ${HEADER_FILES})

target_link_libraries(aps Qt5::Core Qt5::Widgets Qt5::Gui ${catkin_LIBRARIES} ${VTK_LIBRARIES} ${MOC_UI_FILES})

install(TARGETS aps DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION})

/***********************************************

I am receiving the following error:

[ 84%] Linking CXX executable /home/hemanth/viz_ws/devel/lib/aps_ros/aps
ui_configdialog.h:12:27: fatal error: QtCore/QVariant: No such file or directory
compilation terminated.
ui_mainwindow.h:12:27: fatal error: QtCore/QVariant: No such file or directory
compilation terminated.
APS_ROS/CMakeFiles/aps.dir/build.make:418: recipe for target '/home/hemanth/viz_ws/devel/lib/aps_ros/aps' failed
make[2]: *** [/home/hemanth/viz_ws/devel/lib/aps_ros/aps] Error 1
CMakeFiles/Makefile2:3236: recipe for target 'APS_ROS/CMakeFiles/aps.dir/all' failed
make[1]: *** [APS_ROS/CMakeFiles/aps.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2
Invoking "make -j4 -l4" failed

Any suggestions on how to correct this issue?

Thanks in advance..!!!

[ghkraju]

I have solved the issue by searching in internet. May be this could help to solve if you face any issues:
(This CMakeLists.txt is used for a project in Qt and integrates ROS functionalities in it)

Please do let me know, if you have any queries.....

## First start with some standard catkin stuff.
cmake_minimum_required(VERSION 2.8.3)

project(aps_ros)

# Set mandatory compiler c++ standard support
set(CPP_STD "11")
if(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" OR ${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
  include(CheckCXXCompilerFlag)
  CHECK_CXX_COMPILER_FLAG("-std=c++${CPP_STD}" COMPILER_SUPPORTS_CXX${CPP_STD})
  if(COMPILER_SUPPORTS_CXX${CPP_STD})
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++${CPP_STD}")
  else()
    message(FATAL_ERROR "ERROR: The compiler ${CMAKE_CXX_COMPILER} has no C++${CPP_STD} support.\n"
                        "Please use a different C++ compiler.")
  endif()
endif()


find_package(catkin REQUIRED COMPONENTS rviz roscpp)

find_package(VTK REQUIRED)

catkin_package()
set(CMAKE_INCLUDE_PATH /usr/include/x86_64-linux-gnu/qt5/)
set(VTK_INCLUDE_DIRS /usr/local/include/vtk-7.0/)
set(VTK_LIBRARY_DIRS /usr/local/lib)
set(CMAKE_INCLUDE_CURRENT_DIR ON)


## This setting causes Qt's "MOC" generation to happen automatically.
##set(CMAKE_AUTOMOC ON)
##set(CMAKE_AUTOUIC ON)

## This plugin includes Qt widgets, so we must include Qt.
## We'll use the version that rviz used so they are compatible.
if(rviz_QT_VERSION VERSION_LESS "5")
  message(STATUS "Using Qt4 based on the rviz_QT_VERSION: ${rviz_QT_VERSION}")
  find_package(Qt4 ${rviz_QT_VERSION} EXACT REQUIRED QtCore QtGui)
  ## pull in all required include dirs, define QT_LIBRARIES, etc.
  include(${QT_USE_FILE})
else()
  message(STATUS "Using Qt5 based on the rviz_QT_VERSION: ${rviz_QT_VERSION}")
message( STATUS "-----> Current Qt Installation Path : " ${QTDIR})
  find_package(Qt5 ${rviz_QT_VERSION} EXACT REQUIRED Core Widgets)
	##find_package(Qt5Core)
	##find_package(Qt5Gui)
	##find_package(Qt5Widgets)
	##find_package(Qt5OpenGL)
  ## make target_link_libraries(${QT_LIBRARIES}) pull in all required dependencies
  set(QT_LIBRARIES Qt5::Widgets Qt5::Core)	
  ##include(${QT_USE_FILE})
  ##include(${VTK_USE_FILE})
endif()

## I prefer the Qt signals and slots to avoid defining "emit", "slots",
## etc because they can conflict with boost signals, so define QT_NO_KEYWORDS here.
##add_definitions(-DQT_NO_KEYWORDS)
add_definitions(${QT_DEFINITIONS})


include_directories(${catkin_INCLUDE_DIRS} ${VTK_INCLUDE_DIRS} ${CMAKE_BINARY_DIR})

link_directories(${catkin_LIBRARY_DIRS} ${VTK_LIBRARY_DIRS})

set(HEADER_FILES 
		include/configdialog.h 
		include/vwidget.h 
		include/loggerwidget.h 
		include/mainwindow.h
		include/rosvizwidget.h)
set(SOURCES 
		sources/configdialog.cpp 
		sources/vwidget.cpp 
		sources/loggerwidget.cpp 
		sources/rosvizwidget.cpp
		sources/mainwindow.cpp 
		sources/main.cpp)
set(WINDOW_FORMS 
		windows/configdialog.ui 
		windows/mainwindow.ui)

qt5_wrap_ui(UI_HEADERS ${WINDOW_FORMS})

qt5_wrap_cpp(MOC_SRCS ${HEADER_FILES})

add_executable(aps ${SOURCES} ${MOC_SRCS} ${UI_HEADERS})

target_include_directories(
  aps
    PUBLIC
      ${CMAKE_CURRENT_SOURCE_DIR}/include
    PRIVATE
      # NOTHING YET
)

## Link external libraries here
target_link_libraries(aps ${QT_LIBRARIES} ${catkin_LIBRARIES} ${VTK_LIBRARIES})

## Install
install(TARGETS aps DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION})