Got error when I build the project like in the below. I tried so many things but never succeeded. I'm using m1 MacBook. Is this related with this error ?
[CXX1405] exception while building Json A problem occurred starting process 'command '/Users/serhat/Library/Android/sdk/cmake/3.18.1/bin/cmake''
in build.gradle:
externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}
and this is CmakeList.txt :
# For more information about using CMake with Android Studio,read the
# documentation: https://d.android.com/studio/projects/add-native-code.html
# Sets the minimum version of CMake required to build the native library.
cmake_minimum_required(VERSION 3.4.1)
# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.
add_library( # Sets the name of the library.
native-lib
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/cpp/native-lib.cpp )
# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log )
# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.
target_link_libraries( # Specifies the target library.
native-lib
# Links the target library to the log library
# included in the NDK.
${log-lib} )
I fixed this issue :
softwareupdate --install-rosetta
Related
cmake_minimum_required(VERSION 3.15)
project(hello)
find_package(PkgConfig REQUIRED)
pkg_search_module(GLFW REQUIRED glfw3)
set(CMAKE_CXX_STANDARD 11)
add_executable(hello main.cpp)
INCLUDE_DIRECTORIES(${GLFW_INCLUDE_DIRS})
TARGET_LINK_LIBRARIES(hello ${GLFW_STATIC_LIBRARIES})
It tells me
CMake Error at /home/user/.local/share/JetBrains/Toolbox/apps/CLion/ch-0/193.5233.144/bin/cmake/linux/share/cmake-3.15/Modules/FindPkgConfig.cmake:696 (message):
None of the required 'glfw3' found
when I try to build it. My glfw folder is located at /usr/local/include/GLFW.
AFAIK, glfw3 is using CMake as the build system,
(src: packages.debian.org/fr/sid/amd64/libglfw3-dev/filelist)
which uses modern CMake, so you don't need GLFW_INCLUDE_DIRS etc...
Inside this file /usr/lib/cmake/glfw3/glfw3Targets.cmake (loaded by /usr/lib/cmake/glfw3/glfw3Config.cmake), you'll see:
...
# Create imported target glfw
add_library(glfw SHARED IMPORTED)
set_target_properties(glfw PROPERTIES
INTERFACE_COMPILE_DEFINITIONS "GLFW_DLL"
INTERFACE_INCLUDE_DIRECTORIES "/usr/include"
)
...
So you can simply use:
find_package(glfw3 REQUIRED)
...
target_link_libraries(Foo glfw)
ps: same as my previous comment
I'm trying to learn a bit of Android development.
I've started a new project for a simple hello world and it works fine.
The project is essentially the default one + one more header file in the cpp folder,
However I can't see such .cpp in the project mode, can anyone suggest how to fix this?
(See picture below).
I've attempted to change some setting in File > Project Structure but it doesn't seem to make any difference.
Maybe worth noticing that the header file isn't listed in the CMakeLists.txt at all.
# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html
# Sets the minimum version of CMake required to build the native library.
cmake_minimum_required(VERSION 3.4.1)
# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.
add_library( # Sets the name of the library.
native-lib
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/cpp/native-lib.cpp )
# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log )
# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.
target_link_libraries( # Specifies the target library.
native-lib
# Links the target library to the log library
# included in the NDK.
${log-lib} )
According to the android doc:
Known Issue: Android Studio currently shows you only the header files that have matching source files—even if you specify other headers in your CMake build script. See Issue #38068472
This means you need a pair filename.h and filename.cpp, you modify your CMakeLists.txt accordingly. The header file will be shown in project mode if it has a corresponding .cpp with the same name.
Reference:
https://developer.android.com/studio/projects/add-native-code
I am trying to compile OpenCV in native on Android Studio. I am trying to follow : https://sriraghu.com/2017/03/11/opencv-in-android-an-introduction-part-1/
I was succesfully able to do it by following these steps on Windows. However on Ubuntu, its not working. The error is :
Execution failed for task ‘:app:externalNativeBuildDebug’.
Build command failed. Error while executing process /home/user/Android/Sdk/cmake/3.6.4111459/bin/cmake with arguments {–build
/home/user/AndroidStudioProjects/project_folders/app/.externalNativeBuild/cmake/debug/arm64-v8a
–target native-lib}
ninja: error: ‘../../../../jniLibs/src/main/jniLibs/arm64-v8a/libopencv_java3.so’,
needed by
‘../../../../build/intermediates/cmake/debug/obj/arm64-v8a/libnative-lib.so’,
missing and no known rule to make it
The CMakeLists.txt file is:
cmake_minimum_required(VERSION 3.4.1)
set(pathToOpenCV /media/user/Stuff/Softwares/OpenCV-android-sdk/sdk/native)
include_directories(${pathToOpenCV}/jni/include)
add_library( # Sets the name of the library.
native-lib
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/cpp/native-lib.cpp )
# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
add_library(lib_opencv SHARED IMPORTED)
set_target_properties(lib_opencv PROPERTIES IMPORTED_LOCATIONS /home/user/cmu/android-apps/OpenCV_app_June23/OpenCV_Android/app/src/main/jniLibs/arm64-v8a/libopencv_java3.so)
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log )
# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.
target_link_libraries( # Specifies the target library.
native-lib
# Links the target library to the log library
# included in the NDK.
${log-lib} lib_opencv)
In native-lib.cpp, I am able to add #include without any error prompts in Android Studio.
My previous searches suggest that there is something wrong with the paths. I have checked that the paths are correct, or is there a different way to put the path in Ubuntu?
I am trying to generate some Boost 1.58 libraries that I need (chrono, regex and thread) for Visual Studio 2012 and link the libraries with CMake. I have real problems for CMake and Visual Studio to find or link the libs, depending on the configuration I set.
I am finally using the following configuration:
bjam.exe --link=static --threading multi --variant=debug stage
But this doesn't seem to generate static libs.
How should I generate the libs and search them with CMake in order for Visual Studio to link them properly?
I finally came up with the solution and I think it is detailed enough to become a generic answer.
Visual Studio searches for dynamic libraries so we need to compile Boost libraries as shared, multithreaded, debug and release, and runtime-link shared. In windows using bjam.exe all commands have the prefix "--" except link, so the right way to build the libraries is:
bjam.exe link=shared --threading=multi --variant=debug --variant=release --with-chrono --with-regex --with-thread stage
This will generate the libs and DLLs in the folder Boost/stage/lib, so we need to set an environment variable Boost_LIBRARY_DIR C:/Boost/stage/lib, for example.
There are more options that may come in hand:
runtime-link = shared/static
toolset= msvc-11.0
The libraries will have a name like this for release:
boost_chrono-vc110-mt-1_58.lib
boost_chrono-vc110-mt-1_58.dll
And for debug:
boost_chrono-vc110-mt-gd-1_58.lib
boost_chrono-vc110-mt-gd-1_58.dll
In order for CMake to link them properly we need to write the following in the CMakeLists.txt:
add_definitions( -DBOOST_ALL_DYN_LINK ) //If not VS will give linking errors of redefinitions
set(Boost_USE_STATIC_LIBS OFF )
set(Boost_USE_MULTITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
find_package(Boost COMPONENTS thread chrono regex REQUIRED )
INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS})
TARGET_LINK_LIBRARIES( ${PROJ_NAME} ${Boost_LIBRARIES} )
bjam.exe --link=static --threading multi --variant=debug stage
But this doesn't seem to generate static libs.
Building the special stage target places Boost library binaries in the stage\lib\ subdirectory of the Boost tree.
More about building Boost on Windows here
CMake:
SET (CMAKE_BUILD_TYPE Debug) # in order to link with boost debug libs you may need to set that to build your program in debug mode (or do that from command line)
FIND_PACKAGE (Boost 1.58 COMPONENTS "chrono" "regex" "thread" REQUIRED)
#ADD_DEFINITIONS(-DBOOST_ALL_DYN_LINK) # make sure you don't have this as it will try to link with boost .dll's
INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS})
LINK_DIRECTORIES(${Boost_LIBRARY_DIRS})
TARGET_LINK_LIBRARIES(${EXE_OR_LIB_NAME} ${Boost_LIBRARIES})
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: