I'm new to CMake. I copied a small vtk example from the link http://www.vtk.org/Wiki/VTK/Examples/Cxx/IO/SimplePointsReader and used CMake to compile. And it gives me an error, " Error in configuration process, Project files may be invalid".
It shows me the errors,
CMake Error at CMakeLists.txt:5 (find_package): By not providing
"FindVTK.cmake" in CMAKE_MODULE_PATH this project has asked CMake to
find a package configuration file provided by "VTK", but CMake did
not find one.
Could not find a package configuration file provided by "VTK" with
any of the following names:
VTKConfig.cmake
vtk-config.cmake
Add the installation prefix of "VTK" to CMAKE_PREFIX_PATH or set
"VTK_DIR" to a directory containing one of the above files. If
"VTK" provides a separate development package or SDK, be sure it has
been installed.
I have already installed vtk in my pc and please help me with this problem.
CMakeLists.txt contains the following code
cmake_minimum_required(VERSION 2.8)
PROJECT(SimplePointsReader)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(SimplePointsReader MACOSX_BUNDLE SimplePointsReader)
if(VTK_LIBRARIES)
target_link_libraries(SimplePointsReader ${VTK_LIBRARIES})
else()
target_link_libraries(SimplePointsReader vtkHybrid vtkWidgets)
endif()
I've solved this problem by setting VTK_DIR=path_to_VTK/bin as an environment variable, because CMakeList.txt file's changing was not helpful.
Related
I have run into a rather strange problem with Google Tests.
In my project, I am using externalProject_add in order to download google tests and add them into my project. In my function, I believe I am asking for the project to be built, and then installed into a specific directory:
ExternalProject_Add(gTest_download
URL ${GTEST_url}
URL_HASH ${GTEST_hash}
UPDATE_COMMAND ""
BUILD_COMMAND cmake --build . --target install
CMAKE_CACHE_ARGS
-DCMAKE_C_COMPILER:PATH=${Compiler_C}
-DCMAKE_CXX_COMPILER:PATH=${Compiler_CXX}
-DBUILD_SHARED_LIBS:BOOL=ON
-DCMAKE_INSTALL_PREFIX:PATH=<BINARY_DIR>/installation
)
I can then tell the program where all the source files are living with this:
ExternalProject_Get_Property(gTest_download BINARY_DIR)
set(gTest_LIBRARY_DIR ${BINARY_DIR}/installation/lib CACHE INTERNAL "Google Test Binary Dir")
set(gTest_INCLUDE_DIR ${BINARY_DIR}/installation/include CACHE INTERNAL "Google Test Include Dir")
However, when I try to run a cmake test with protobufs I get the run time error:
./Protobuf_test: error while loading shared libraries: libgmock.so.1.11.0: cannot open shared object file: No such file or directory
Which is super odd, because I know I specifically told the program where to find the libraries in the same externalProject_add file:
set(gTest_LIBRARIES
${gTest_LIBRARY_DIR}/${prefix}gmock${suffix}
${gTest_LIBRARY_DIR}/${prefix}gmock_main${suffix}
${gTest_LIBRARY_DIR}/${prefix}gtest${suffix}
${gTest_LIBRARY_DIR}/${prefix}gtest_main${suffix}
CACHE INTERNAL "Google Test Libraries"
)
Where ${prefix} is "lib" and ${suffix} is ".lib". And I make sure to link them in my CMakeLists.txt file properly by doing target_link_libraries(Protobuf_test ${gTest_LIBRARIES} ${protobuf_LIBRARIES}) ex:
CUSTOM_PROTOBUF_GENERATE_CPP(PROTO_SRCS PROTO_HDS ${CMAKE_CURRENT_LIST_DIR} hello.proto)
include_directories(
${protoBuf_INCLUDE_DIR}
${gTest_INCLUDE_DIR}
${CMAKE_CURRENT_LIST_DIR}
)
add_executable(Protobuf_test protobuf_test.cc ${PROTO_SRCS} ${PROTO_HDS})
add_dependencies(Protobuf_test
gTest_download
protoBuf_download
)
target_link_libraries(Protobuf_test
${gTest_LIBRARIES}
${protoBuf_LIBRARIES}
)
add_test(NAME testing_protobuf COMMAND Protobuf_test)
So I went into the installation folder which is located in d/linuxBuild/lib/src/gTest_download-build/installation/lib and confirmed it exists there. I then ran ldd libgmock.so and got the following output:
libgtest.so.1.11.0 => not found
Which I thought was odd as well. gtest is in the same directory! How is that possible? So I ran ldd on gmock_main:
libgmock.so.1.11.0 => not found
libgtest.so.1.11.0 => not found
So now I have two libraries that are in the same directory however they cannot be found. Confused, I decide to go to where the libraries should have originally installed to and copied over from. So two folders up: d/linuxBuild/lib/src/gTest_download-build. I then go into that folders lib folder and verify the libraries are there. I then run the same ldd command on gmock:
libgtest.so.1.11.0 => /mnt/d/linuxBuild/lib/src/gTest_download-build/lib/libgtest.so.1.11.0 (0x00007fb651729000)
I'm confused by this and again, run it on gmock_main:
libgmock.so.1.11.0 => /mnt/d/linuxBuild/lib/src/gTest_download-build/lib/libgmock.so.1.11.0 (0x00007f58b0db3000)
libgtest.so.1.11.0 => /mnt/d/linuxBuild/lib/src/gTest_download-build/lib/libgtest.so.1.11.0 (0x00007f58b0c9c000)
I am sorry for the lengthy question, but I need to know what happened here? Why is it when I install the libraries the links break from each other and they don't know their locations compared to the ones in the original installation path? Did their symbolic links break? Did I do something incorrectly in the CMake build? I'm scratching my head on this problem since I have never encountered this before. Any advice would be greatly appreciated.
Forget about externalProject_add and use FetchContent / FetchContent_MakeAvailable, especially when dealing with CMake-ready projects:
See https://cmake.org/cmake/help/latest/module/FetchContent.html for details
include(FetchContent)
FetchContent_Declare(
googletest
GIT_REPOSITORY https://github.com/google/googletest.git
GIT_TAG release-1.11.0
)
FetchContent_MakeAvailable(googletest)
# ...
target_link_libraries(Protobuf_test
PRIVATE
gmock_main
${protoBuf_LIBRARIES}
)
This way, you are linking against the gmock_main target, which will set up your libraries, includes, and any indirect dependencies correctly like any cmake project added via add_subdirectory() or find_package().
I am getting the following CMake error:
CMake Error at CMakeLists.txt:23 (find_package):
By not providing "FindQt5.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Qt5", but
CMake did not find one.
Could not find a package configuration file provided by "Qt5" with any of
the following names:
Qt5Config.cmake
qt5-config.cmake
Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"
to a directory containing one of the above files. If "Qt5" provides a
separate development package or SDK, be sure it has been installed.
In my CMakeLists.txt, there is this line:
if (NOT CMAKE_PREFIX_PATH)
message(WARNING "CMAKE_PREFIX_PATH is not defined, you may need to set it "
"(-DCMAKE_PREFIX_PATH=\"path/to/Qt/lib/cmake\" or -DCMAKE_PREFIX_PATH=/usr/include/{host}/qt{version}/ on Ubuntu)")
endif ()
So I did what it says and set my PREFIX_PATH to "/usr/include/x86_64-linux-gnu/qt5/".
However, the error I get says that CMake cannot find "qt5-config.cmake", which is located at "/usr/lib/x86_64-linux-gnu/cmake/Qt5" and not "/usr/include/x86_64-linux-gnu/qt5/", so I tried setting the "Qt5_DIR" to that directory (since it says in the error to set it to a dir that contains the above files) but still without success. Any ideas why it cant find the files it needs?
edit:
my CMakeLists.txt:
cmake_minimum_required(VERSION 3.19)
project(untitled1)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_PREFIX_PATH "/usr/lib/x86_64-linux-gnu/cmake/Qt5/")
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)
set(QT_VERSION 5)
set(REQUIRED_LIBS Core Gui Widgets)
set(REQUIRED_LIBS_QUALIFIED Qt5::Core Qt5::Gui Qt5::Widgets)
add_executable(${PROJECT_NAME} main.cpp)
if (NOT CMAKE_PREFIX_PATH)
message(WARNING "CMAKE_PREFIX_PATH is not defined, you may need to set it "
"(-DCMAKE_PREFIX_PATH=\"path/to/Qt/lib/cmake\" or -DCMAKE_PREFIX_PATH=/usr/include/{host}/qt{version}/ on Ubuntu)")
endif ()
find_package(Qt${QT_VERSION} COMPONENTS ${REQUIRED_LIBS} REQUIRED)
target_link_libraries(${PROJECT_NAME} ${REQUIRED_LIBS_QUALIFIED})
note that the file has been auto-generated by CLion, all I did was change the path according to what is specified in the if-Block
Here is an example how to specify PATHS variable to make cmake be able to find library:
cmake find_package specify path
But how to get this PATHS variable for specific library?
For example I have installed apt-get install libharfbuzz-dev and dpkg -L libharfbuzz-dev shows me:
/usr
/usr/include
/usr/include/harfbuzz
/usr/include/harfbuzz/hb-blob.h
/usr/include/harfbuzz/hb-buffer.h
/usr/include/harfbuzz/hb-common.h
/usr/include/harfbuzz/hb-deprecated.h
/usr/include/harfbuzz/hb-face.h
/usr/include/harfbuzz/hb-font.h
/usr/include/harfbuzz/hb-ft.h
/usr/include/harfbuzz/hb-glib.h
/usr/include/harfbuzz/hb-gobject-enums.h
/usr/include/harfbuzz/hb-gobject-structs.h
/usr/include/harfbuzz/hb-gobject.h
/usr/include/harfbuzz/hb-graphite2.h
/usr/include/harfbuzz/hb-icu.h
/usr/include/harfbuzz/hb-ot-font.h
/usr/include/harfbuzz/hb-ot-layout.h
/usr/include/harfbuzz/hb-ot-math.h
/usr/include/harfbuzz/hb-ot-shape.h
/usr/include/harfbuzz/hb-ot-tag.h
/usr/include/harfbuzz/hb-ot-var.h
/usr/include/harfbuzz/hb-ot.h
/usr/include/harfbuzz/hb-set.h
/usr/include/harfbuzz/hb-shape-plan.h
/usr/include/harfbuzz/hb-shape.h
/usr/include/harfbuzz/hb-unicode.h
/usr/include/harfbuzz/hb-version.h
/usr/include/harfbuzz/hb.h
/usr/lib
/usr/lib/x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu/libharfbuzz-gobject.a
/usr/lib/x86_64-linux-gnu/libharfbuzz-icu.a
/usr/lib/x86_64-linux-gnu/libharfbuzz.a
/usr/lib/x86_64-linux-gnu/pkgconfig
/usr/lib/x86_64-linux-gnu/pkgconfig/harfbuzz-gobject.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/harfbuzz-icu.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/harfbuzz.pc
/usr/share
/usr/share/doc
/usr/share/doc/libharfbuzz-dev
/usr/share/doc/libharfbuzz-dev/copyright
/usr/share/gir-1.0
/usr/share/gir-1.0/HarfBuzz-0.0.gir
/usr/lib/x86_64-linux-gnu/libharfbuzz-gobject.so
/usr/lib/x86_64-linux-gnu/libharfbuzz-icu.so
/usr/lib/x86_64-linux-gnu/libharfbuzz.so
/usr/share/doc/libharfbuzz-dev/changelog.Debian.gz
Which path should I use?
Update:
Error message:
CMake Error at <some_path>/CMakeLists.txt:6 (find_package):
By not providing "FindHarfbuzz.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Harfbuzz",
but CMake did not find one.
Could not find a package configuration file provided by "Harfbuzz" with any
of the following names:
HarfbuzzConfig.cmake
harfbuzz-config.cmake
Add the installation prefix of "Harfbuzz" to CMAKE_PREFIX_PATH or set
"Harfbuzz_DIR" to a directory containing one of the above files. If
"Harfbuzz" provides a separate development package or SDK, be sure it has
been installed.
I tried to add path via CMAKE_PREFIX_PATH like cmake .. -DCMAKE_PREFIX_PATH=/usr/lib/x86_64-linux-gnu but it doesn't help.
I am creating an object tracking program which rely on OpenCV. Thus I want to be able to test it with different versions of OpenCV but I have linking errors.
I installed the last version of OpenCV (a69b435c928f422fb5f99c02cf2dcae57dcf820a) in the following folder : /usr/local/opencv/opencv-trunk instead of the usual /usr/local.
Then I followed also the official tutorial to use OpenCV with CMake in Linux, but I had the following "normal" error :
CMake Error at CMakeLists.txt:11 (find_package):
By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "OpenCV", but CMake did not find one.
Could not find a package configuration file provided by "OpenCV" with any of the following names:
OpenCVConfig.cmake
opencv-config.cmake
Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set "OpenCV_DIR" to a directory containing one of the above files. If "OpenCV" provides a separate development package or SDK, be sure it has been installed.
-- Configuring incomplete, errors occurred!
So I did what was suggested and added the following line in my CMakeLists.txt :
# Find independently installed OpenCV libraries
set(OpenCV_DIR "/usr/local/opencv/opencv-trunk/share/OpenCV")
This is the complete CMakeLists.txt file :
# Find independently installed OpenCV libraries
set(OpenCV_DIR "/usr/local/opencv/opencv-trunk/share/OpenCV")
cmake_minimum_required(VERSION 2.8)
project( DisplayImage )
add_executable( DisplayImage DisplayImage.cpp )
find_package( OpenCV REQUIRED )
include_directories( ${OpenCV_INCLUDE_DIRS} )
target_link_libraries( DisplayImage ${OpenCV_LIBS} )
Now I have the following error and I don't find how to deal with it.
CMake Error at CMakeLists.txt:12 (find_package):
Found package configuration file:
/usr/local/opencv/opencv-trunk/share/OpenCV/OpenCVConfig.cmake
but it set OpenCV_FOUND to FALSE so package "OpenCV" is considered to be NOT FOUND.
-- Configuring incomplete, errors occurred!
If you have already faced that issue in such context your solutions are welcomed ;)
If you are running IntelliJ or any other IDE, just try re-building CMake cache (or just remove your build directory and run cmake utility again).
I believe this is not the best practice - to set the configuration variable like OpenCV_DIR hard-coded in the CMakeLists.txt. Try setting it manually, as an environment variable to the cmake utility:
OpenCV_DIR=/usr/local/Cellar/opencv3/3.1.0_2/share/OpenCV/ cmake ..
or set your IDE to make this for you:
I have a CMake module to locate FreeGLUT:
FIND_PATH(FREEGLUT_INCLUDE_DIR NAMES GL/freeglut.h)
FIND_LIBRARY(FREEGLUT_LIBRARY NAMES freeglut freeglut_static)
SET(FREEGLUT_LIBRARIES ${FREEGLUT_LIBRARY})
SET(FREEGLUT_INCLUDE_DIRS ${FREEGLUT_INCLUDE_DIR})
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(FreeGLUT DEFAULT_MSG FREEGLUT_LIBRARY FREEGLUT_INCLUDE_DIR)
MARK_AS_ADVANCED(FREEGLUT_INCLUDE_DIR FREEGLUT_LIBRARY)
It works fine and locates freeglut_static.lib when I generate NMake Makefiles on Windows. I'm attempting to statically link FreeGLUT into my DLL:
FIND_PACKAGE(FreeGLUT REQUIRED)
ADD_LIBRARY(vti SHARED ${VTI_SOURCES})
ADD_DEFINITIONS("-DBUILD_VTI=1 -DFREEGLUT_STATIC=1")
INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include ${FREEGLUT_INCLUDE_DIRS})
TARGET_LINK_LIBRARIES(vti ${FREEGLUT_LIBRARIES})
My source code builds correctly, but when it gets to the linking stage, VC++ fails with:
LINK : fatal error LNK1104: cannot open file 'freeglut.lib'
Which is strange since freeglut.lib isn't mentioned anywhere that I can see in the generated NMake makefiles. It should be trying to link with freeglut_static.lib, which CMake locates and sets in FREEGLUT_LIBRARIES.
What might be causing this?
This is caused with pragma directives in FreeGLUT code (see freeglut_std.h). Using FREEGLUT_STATIC should really fix that for you, but I think you should pass it to CMake without quotes: ADD_DEFINITIONS(-DBUILD_VTI -DFREEGLUT_STATIC)