Cmake Error

[gzucatelli]

"I am following the installation steps and the error occurs:"

xxxxxx@raspberrypi:~/ros2_ws$ sudo colcon build --event-handlers console_direct+ --cmake-args -DCMAKE_BUILD_TYPE=Release
Starting >>> orbbec_camera_msgs
Starting >>> orbbec_description
-- The C compiler identification is GNU 11.4.0
-- The C compiler identification is GNU 11.4.0
-- The CXX compiler identification is GNU 11.4.0
-- The CXX compiler identification is GNU 11.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:9 (find_package):
By not providing "Findament_cmake.cmake" in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
"ament_cmake", but CMake did not find one.

Could not find a package configuration file provided by "ament_cmake" with
any of the following names:

ament_cmakeConfig.cmake
ament_cmake-config.cmake

Add the installation prefix of "ament_cmake" to CMAKE_PREFIX_PATH or set
"ament_cmake_DIR" to a directory containing one of the above files. If
"ament_cmake" provides a separate development package or SDK, be sure it
has been installed.

-- Configuring incomplete, errors occurred!
CMake Error at CMakeLists.txt:4 (find_package):
By not providing "Findament_cmake.cmake" in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
"ament_cmake", but CMake did not find one.

Could not find a package configuration file provided by "ament_cmake" with
any of the following names:

ament_cmakeConfig.cmake
ament_cmake-config.cmake

Add the installation prefix of "ament_cmake" to CMAKE_PREFIX_PATH or set
"ament_cmake_DIR" to a directory containing one of the above files. If
"ament_cmake" provides a separate development package or SDK, be sure it
has been installed.

See also "/home/guilherme/ros2_ws/build/orbbec_camera_msgs/CMakeFiles/CMakeOutput.log".
-- Configuring incomplete, errors occurred!
See also "/home/guilherme/ros2_ws/build/orbbec_description/CMakeFiles/CMakeOutput.log".
--- stderr: orbbec_camera_msgs
CMake Error at CMakeLists.txt:9 (find_package):
By not providing "Findament_cmake.cmake" in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
"ament_cmake", but CMake did not find one.

Could not find a package configuration file provided by "ament_cmake" with
any of the following names:

ament_cmakeConfig.cmake
ament_cmake-config.cmake

Add the installation prefix of "ament_cmake" to CMAKE_PREFIX_PATH or set
"ament_cmake_DIR" to a directory containing one of the above files. If
"ament_cmake" provides a separate development package or SDK, be sure it
has been installed.

---

Failed <<< orbbec_camera_msgs [8.43s, exited with code 1]
Aborted <<< orbbec_description [8.37s]

Summary: 0 packages finished [13.3s]
1 package failed: orbbec_camera_msgs
1 package aborted: orbbec_description
2 packages had stderr output: orbbec_camera_msgs orbbec_description
1 package not processed

[jian-dong]

I suspect that you haven't sourced the ROS2 environment. Assuming you are using Humble, you can try the following command:

source /opt/ros/humble/setup.bash