# VOXL mpa_to_ros1 cmake prefix path

Source: https://forum.modalai.com/topic/3147/voxl-mpa_to_ros1-cmake-prefix-path
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2024-02-26 18:32:05 UTC by Darshit Desai
Replies: 2 · Views: 605

## Darshit Desai · 2024-02-26 18:32:05 UTC

What paths should be there in CMAKE_PREFIX_PATH variable to make sure it points to voxl_mpa_to_ros1, Right now it is pointing to the ROS2 version of mpatoros. 

```BASH
voxl2:~/catkin_ws$ catkin_make
Base path: /home/root/catkin_ws
Source space: /home/root/catkin_ws/src
Build space: /home/root/catkin_ws/build
Devel space: /home/root/catkin_ws/devel
Install space: /home/root/catkin_ws/install
####
#### Running command: "cmake /home/root/catkin_ws/src -DCATKIN_DEVEL_PREFIX=/home/root/catkin_ws/devel -DCMAKE_INSTALL_PREFIX=/home/root/catkin_ws/install -G Unix Makefiles" in "/home/root/catkin_ws/build"
####
-- Using CATKIN_DEVEL_PREFIX: /home/root/catkin_ws/devel
-- Using CMAKE_PREFIX_PATH: /opt/ros/melodic;/opt/ros/foxy/mpa_to_ros2/install/voxl_mpa_to_ros2;/opt/ros/foxy/mpa_to_ros2/install/voxl_msgs;/opt/ros/foxy/mpa_to_ros2/install/px4_ros_com;/opt/ros/foxy/mpa_to_ros2/install/px4_msgs;/opt/ros/foxy/mpa_to_ros2/install/image_common;/opt/ros/foxy/mpa_to_ros2/install/image_transport;/opt/ros/foxy/mpa_to_ros2/install/camera_info_manager;/opt/ros/foxy/mpa_to_ros2/install/camera_calibration_parsers;/opt/ros/foxy
-- This workspace overlays: /opt/ros/melodic
-- Using PYTHON_EXECUTABLE: /usr/bin/python2
-- Using Debian Python package layout
-- Using empy: /usr/bin/empy
-- Using CATKIN_ENABLE_TESTING: ON
-- Call enable_testing()
-- Using CATKIN_TEST_RESULTS_DIR: /home/root/catkin_ws/build/test_results
-- Forcing gtest/gmock from source, though one was otherwise available.
-- Found gtest sources under '/usr/src/googletest': gtests will be built
-- Found gmock sources under '/usr/src/googletest': gmock will be built
-- Found PythonInterp: /usr/bin/python2 (found version "2.7.17") 
-- Using Python nosetests: /usr/bin/nosetests-2.7
-- catkin 0.7.29
-- BUILD_SHARED_LIBS is on
-- BUILD_SHARED_LIBS is on
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-- ~~  traversing 4 packages in topological order:
-- ~~  - kalman_filter_ros
-- ~~  - tflite_prop_detection
-- ~~  - your_pointcloud_package
-- ~~  - your_tf_package
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-- +++ processing catkin package: 'kalman_filter_ros'
-- ==> add_subdirectory(kalman_filter_ros)
-- +++ processing catkin package: 'tflite_prop_detection'
-- ==> add_subdirectory(tflite_prop_detection)
-- Found camera_info_manager: 2.4.0 (/opt/ros/foxy/mpa_to_ros2/install/camera_info_manager/share/camera_info_manager/cmake)
-- Found PythonInterp: /usr/bin/python2 (found suitable version "2.7.17", minimum required is "2") 
-- Using PYTHON_EXECUTABLE: /usr/bin/python2
Traceback (most recent call last):
  File "/opt/ros/foxy/share/ament_cmake_core/cmake/package_templates/templates_2_cmake.py", line 21, in <module>
    from ament_package.templates import get_environment_hook_template_path
  File "/opt/ros/foxy/lib/python3.6/site-packages/ament_package/templates.py", line 43
    def get_prefix_level_template_names(*, all_platforms=False):
                                         ^
SyntaxError: invalid syntax
CMake Error at /opt/ros/foxy/share/ament_cmake_core/cmake/ament_cmake_package_templates-extras.cmake:41 (message):
  execute_process(/usr/bin/python2
  /opt/ros/foxy/share/ament_cmake_core/cmake/package_templates/templates_2_cmake.py
  /home/root/catkin_ws/build/tflite_prop_detection/ament_cmake_package_templates/templates.cmake)
  returned error code 1
Call Stack (most recent call first):
  /opt/ros/foxy/share/ament_cmake_core/cmake/ament_cmake_coreConfig.cmake:41 (include)
  /opt/ros/foxy/mpa_to_ros2/install/camera_info_manager/share/camera_info_manager/cmake/ament_cmake_export_include_directories-extras.cmake:8 (find_package)
  /opt/ros/foxy/mpa_to_ros2/install/camera_info_manager/share/camera_info_manager/cmake/camera_info_managerConfig.cmake:41 (include)
  /opt/ros/melodic/share/voxl_mpa_to_ros/cmake/voxl_mpa_to_rosConfig.cmake:197 (find_package)
  /opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:76 (find_package)
  tflite_prop_detection/CMakeLists.txt:8 (find_package)

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

## Reply by Moderator (ModalAI staff) · 2024-02-27 16:19:31 UTC

@Darshit-Desai The CI runs nightly and is passing. Can you use the [build scripts](https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-mpa-to-ros/-/blob/master/build.sh?ref_type=heads) from the CI?

## Reply by Darshit Desai · 2024-02-27 16:29:12 UTC (in reply to Moderator)

@Moderator I had to explicitly change the system variable CMAKE_PREFIX_PATH every time to /opt/ros/melodic only to build the nodes. Building a new voxl package might break things and I don't want to do that.