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如何修复 CMake error Could not find a package configuration file provided by boost_filesystem

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问题：

编译基于 CMake 的 C++ 时

boost_filesystem_cmake.txt
CMake Error at /usr/lib/x86_64-linux-gnu/cmake/Boost-1.71.0/BoostConfig.cmake:117 (find_package):
  Could not find a package configuration file provided by "boost_filesystem"
  (requested version 1.71.0) with any of the following names:

    boost_filesystemConfig.cmake
    boost_filesystem-config.cmake

  Add the installation prefix of "boost_filesystem" to CMAKE_PREFIX_PATH or
  set "boost_filesystem_DIR" to a directory containing one of the above
  files.  If "boost_filesystem" provides a separate development package or
  SDK, be sure it has been installed.
Call Stack (most recent call first):
  /usr/lib/x86_64-linux-gnu/cmake/Boost-1.71.0/BoostConfig.cmake:182 (boost_find_component)
  /usr/share/cmake-3.16/Modules/FindBoost.cmake:443 (find_package)
  CMakeLists.txt:58 (find_package)

解决方案

错误消息试图告诉你你没有安装 boost filesystem 库（或 CMake 找不到它）。

例如在 Ubuntu 上，使用以下命令安装

install_boost_filesystem.sh
sudo apt -y install libboost-filesystem-dev

在 Windows 上你可以使用 Windows 预构建 boost 二进制文件安装它。

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