CMake Error at plumbing_pub_sub/CMakeLists.txt:137 (add_executable): Cannot find source file:

引用\[1\]:CMake Error at plumbing_pub_sub/CMakeLists.txt:148 (add_dependencies): The dependency target "plumbing_pub_sub_generate_message_cpp" of target "demo03_pub_person" does not exist.
引用\[2\]:CMake Error at CMakeLists.txt:4 (CMAKE_MINIMUM_REQUIRED): CMake 3.0.2 or higher is required. You are running version 2.8.12.2-- Configuring incomplete, errors occurred!
引用\[3\]:1、下载：curl -O https://cmake.org/files/v3.6/cmake-3.6.0-Linux-x86_64.tar.gz 2、解压：tar -zxvf cmake-3.6.0-Linux-x86_64.tar.gz 注意：这个压缩包不是源码包，解压后直接用。 3、增加环境变量，使其成为全局变量： vim /etc/profile 在文件末尾处增加以下代码 export PATH=$PATH:/lnmp/src/cmake-3.6.0-Linux-x86_64/bin 注意：写自己刚安装cmake的bin的路径 使修改的文件生效 source /etc/profile 4、查看环境变量： echo $PATH 5、检查cmake版本： cmake --version

问题: CMake Error at plumbing_pub_sub/CMakeLists.txt:137 (add_executable): Cannot find source file:
回答: 根据引用\[1\]中的错误信息，CMake在执行add_dependencies时报错，提示目标"plumbing_pub_sub_generate_message_cpp"不存在。这可能是由于CMakeLists.txt文件中的依赖关系设置有误导致的。另外，引用\[2\]中的错误信息显示你正在使用的CMake版本过低，需要使用CMake 3.0.2或更高版本。你可以根据引用\[3\]中的步骤下载并安装最新版本的CMake，并将其添加到全局环境变量中。这样可以解决CMake版本不兼容的问题。至于CMake Error at plumbing_pub_sub/CMakeLists.txt:137 (add_executable): Cannot find source file:的具体原因，需要查看CMakeLists.txt文件中的代码，确认是否正确指定了源文件的路径。
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