Ubuntu20.04(Noetic)下编译laser_filters失败求助

环境：Ubuntu 20.04 + ROS Noetic，手动编译laser_filters时遇到如下编译错误：

使用catkin_make时的错误 #

CMake Error at /opt/ros/noetic/share/catkin/cmake/catkin_workspace.cmake:100 (message):
  This workspace contains non-catkin packages in it, and catkin cannot build
  a non-homogeneous workspace without isolation.  Try the
  'catkin_make_isolated' command instead.
Call Stack (most recent call first):
  CMakeLists.txt:69 (catkin_workspace)

-- Configuring incomplete, errors occurred!
See also "/home/limlab/filter_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/limlab/filter_ws/build/CMakeFiles/CMakeError.log".
Invoking "cmake" failed

使用catkin_make_isolated时的错误 #

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~  traversing 1 packages in topological order:
~~  - laser_filters (unknown)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Error: Packages with unknown build types exist
Can not build workspace with packages of unknown build_type

解决步骤 #

1. 检查包的存放路径
   确保laser_filters源码放在工作空间的src目录下，而非工作空间根目录。正确结构应为：filter_ws/src/laser_filters/。

2. 验证包配置文件完整性
   进入laser_filters包目录，检查package.xml是否包含以下关键内容：

   • <buildtool_depend>catkin</buildtool_depend>
   • <build_type>catkin</build_type>（catkin类型包必填）
     同时确认CMakeLists.txt开头有cmake_minimum_required(VERSION ...)和find_package(catkin REQUIRED ...)等标准catkin包配置项。

3. 清理并重新编译
   删除之前生成的编译文件，重新执行编译：

   cd ~/filter_ws
   rm -rf build devel install
   catkin_make
   

   若仍有问题，可尝试使用catkin build（需先安装catkin_tools：sudo apt install ros-noetic-catkin）。

4. 快速替代方案：直接安装预编译包
   若无需修改laser_filters源码，直接通过apt安装官方预编译版本即可：

   sudo apt-get install ros-noetic-laser-filters
   

内容的提问来源于stack exchange，提问作者reiya