![]() Place user-defined string literals in the global namespace by defining the macro JSON_USE_GLOBAL_UDLS. JSON_DisableEnumSerialization ¶ĭisable default enum serialization by defining the macro JSON_DISABLE_ENUM_SERIALIZATION. JSON_Diagnostics ¶Įnable extended diagnostic messages by defining macro JSON_DIAGNOSTICS. The exact targets are used during the several CI steps and are subject to change without notice. That is, when integrating the library as described above, the test suite is not built unless explicitly switched on with this option. This option is ON by default if the library's CMake project is the top project. CMake Options ¶ JSON_BuildTests ¶īuild the unit tests when BUILD_TESTING is enabled. ![]() For instance, you might want to replace the URL in the example by. You might want to depend on a smaller repository. However, the repository download size is quite large. If you are a ROS beginner and want to learn ROS basics fast, we recommend you take any of the following courses on Robot Ignite Academy:ĭid you like this video? Whatever the case, please leave a comment in the comments section below, so we can interact and learn from each other.FetchContent_Declare ( json GIT_REPOSITORY GIT_TAG v3.11.2 ) ![]() Prefer “sights and sounds” to “black and white”? We have a video covering this same post, just for you! The configuration directives in CMakeLists.txt must follow a particular order this is why commenting out the ‘project’ directive didn’t work, as the error message also hinted. The order in the configuration DOES count. Your CMakeLists.txt file MUST follow this format otherwise your packages will not build correctly. But what about commenting out parts of the file? Also according to ROS Wiki: Well, now you can see why renaming the file isn’t a good idea. ![]() Any CMake-compliant package contains one or more CMakeLists.txt file that describe how to build the code and where to install it to. The file CMakeLists.txt is the input to the CMake build system for building software packages. Step 3: Master the concept – what is CMakeLists.txt? Let’s talk more about that in the next section. Moral lesson: CMakeLists.txt can make or mar a project, if not properly modified. # Running command: "make -j2 -l2" in "/home/user/catkin_ws/build" Build files have been written to: /home/user/catkin_ws/build # add_compile_options(-std=c++11) user:~/catkin_ws$ catkin_make Project(cmakelists_test) -> uncomment this line We aren’t getting away with tampering with CMakeLists.txt, are we? Now, let’s repent and restore the file: remove the comment from the ‘project’ directive, save and run catkin_make again. Invoking "make cmake_check_build_system" failed Makefile:318: recipe for target 'cmake_check_build_system' failed You must call project() before calling catkin_package().Ĭmakelists_test/CMakeLists.txt:103 (catkin_package) +++ processing catkin package: 'cmakelists_test'ĬMake Error at /opt/ros/kinetic/share/catkin/cmake/catkin_package.cmake:91 (message):Ĭatkin_package() PROJECT_NAME is set to 'Project', which is not a valid ~~ traversing 1 packages in topological order: User:~/catkin_ws/src/cmakelists_test$ cd. User:~/catkin_ws/src/cmakelists_test$ mv CMakeList.txt CMakeLists.txt User:~/catkin_ws/src$ cd cmakelists_test/ # add_compile_options(-std=c++11) user:~/catkin_ws$ cd src/ # Compile as C++11, supported in ROS Kinetic and newer # project(cmakelists_test) -> comment out this line Restore the original name but comment out the ‘project’ directive of the CMakeLists.txt file shown below: cmake_minimum_required(VERSION 2.8.3) See also "/home/user/catkin_ws/build/CMakeFiles/CMakeError.log".ĭidn’t work for sure. See also "/home/user/catkin_ws/build/CMakeFiles/CMakeOutput.log". Configuring incomplete, errors occurred! If ros.is_installed() and ros.version add_subdirectory(cmakelists_test)ĬMake Error at /opt/ros/kinetic/share/catkin/cmake/catkin_workspace.cmake:116 (add_subdirectory): If you.prefer_not_to_embrace_the_cloud_revolution() or not you.want_something_that_works_for_sure(): Here you go: def setup_ros_environ(you, ros, docker): Because of this, we’re going to solve the problem in this section using a pseudo-Python code. Let’s go! Step 1: Setup your development environment Hello ROS developers! In this post, we will see what CMakeLists.txt is and it’s importance in ROS in just 5 minutes! We’ll see what happens when it’s absent and when it’s improperly modified.
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