Colcon：如何更改Cmake路径

Question

在 MacOS 上安装 ROS 2 时，我遇到了 Colcon 的一些问题。看来它使用了错误的Cmake路径。

跑步

colcon build --symlink-install --packages-skip-by-dep python_qt_binding

导致以下错误：

make: /opt/homebrew/Cellar/cmake/3.25.0/bin/cmake: No such file or directory

完整输出：

Starting >>> ament_package
Starting >>> ament_lint
Starting >>> gtest_vendor
Starting >>> fastcdr
Starting >>> ament_cppcheck
Starting >>> iceoryx_hoofs
Starting >>> osrf_pycommon
Starting >>> osrf_testing_tools_cpp
--- stderr: fastcdr                                                                                                                  
make: /opt/homebrew/Cellar/cmake/3.25.0/bin/cmake: No such file or directory
make: *** [cmake_check_build_system] Error 1
---
Failed   <<< fastcdr [0.50s, exited with code 2]
Aborted  <<< osrf_testing_tools_cpp [0.49s]
Aborted  <<< osrf_pycommon [0.50s]
Aborted  <<< ament_cppcheck [0.51s]
Aborted  <<< ament_lint [0.53s]
Aborted  <<< ament_package [0.54s]
Aborted  <<< gtest_vendor [0.53s]
Aborted  <<< iceoryx_hoofs [0.68s]                             

Summary: 0 packages finished [2.13s]
  1 package failed: fastcdr
  7 packages aborted: ament_cppcheck ament_lint ament_package gtest_vendor iceoryx_hoofs osrf_pycommon osrf_testing_tools_cpp
  3 packages had stderr output: fastcdr gtest_vendor iceoryx_hoofs
  310 packages not processed
[2.326s] ERROR:colcon.colcon_notification.desktop_notification.terminal_notifier:Could not find the colcon-terminal-notifier.app in the install prefix '/opt/homebrew'

正确的 Cmake 路径是：

>>> which cmake                                                                                                             
/opt/homebrew/Cellar/cmake/3.26.0/bin/cmake

像这样设置正确的路径

set -x CMAKE_COMMAND /opt/homebrew/Cellar/cmake/3.26.0/bin

没有任何效果。

Answer 1

我也遇到了这个问题，发现我可以使用

--cmake-clean-cache

参数来清除缓存的 CMake 配置：colcon

这为我修复了对旧 CMake 的依赖，并暴露了另一个需要修复的构建问题。

此构建参数和其他构建参数的文档位于

colcon 参考

中。