catkin_make error -> boost python 3.7 libraries

[IannGeorges]

OS: Ubuntu Mate 18.04 running on RPI 3 B+ ROS: ROS Melodic Objective: I am trying to use cv_bridge in-order to use opencv on my image topic for ROS. I'm relatively new to ROS, let alone Linux/Ubuntu so I've been having trouble getting past this issue for a while. Whenever I use catkin_make I get errors from vision_opencv stemming from the cv_bridge.

-- +++ processing catkin package: 'cv_bridge'
-- ==> add_subdirectory(vision_opencv/cv_bridge)
-- Found PythonLibs: /usr/lib/aarch64-linux-gnu/libpython2.7.so (found version "2.7.17")
CMake Warning at /usr/share/cmake-3.10/Modules/FindBoost.cmake:1626 (message):
  No header defined for python37; skipping header check
Call Stack (most recent call first):
  vision_opencv/cv_bridge/CMakeLists.txt:11 (find_package)


CMake Error at /usr/share/cmake-3.10/Modules/FindBoost.cmake:1947 (message):
  Unable to find the requested Boost libraries.

  Boost version: 1.65.1

  Boost include path: /usr/include

  Could not find the following Boost libraries:

          boost_python37

  No Boost libraries were found.  You may need to set BOOST_LIBRARYDIR to the
  directory containing Boost libraries or BOOST_ROOT to the location of
  Boost.
Call Stack (most recent call first):
  vision_opencv/cv_bridge/CMakeLists.txt:11 (find_package)


-- Did not find OpenCV 4, trying OpenCV 3
-- Found OpenCV: /usr (found suitable version "3.2.0", minimum required is "3") found components:  opencv_core opencv_imgproc opencv_imgcodecs
-- Found PythonLibs: /usr/lib/aarch64-linux-gnu/libpython2.7.so (found suitable version "2.7.17", minimum required is "2.7")

I believe the boost libraries are already installed, with command find /usr/lib -iname 'libboost_python*.so*' the output I get is:

/usr/lib/aarch64-linux-gnu/libboost_python-py27.so
/usr/lib/aarch64-linux-gnu/libboost_python3.so
/usr/lib/aarch64-linux-gnu/libboost_python3-py36.so
/usr/lib/aarch64-linux-gnu/libboost_python.so
/usr/lib/aarch64-linux-gnu/libboost_python3-py36.so.1.65.1
/usr/lib/aarch64-linux-gnu/libboost_python-py36.so
/usr/lib/aarch64-linux-gnu/libboost_python-py27.so.1.65.1

I feel like the underlying issue might be related to directory location however I am still pretty new to all this stuff so I have no idea, if someone could assist me I'd greatly appreciate it. Thank you for time

[IannGeorges]

I've also checked to see if boost is installed

$ dpkg -s libboost-dev | grep Version
Version: 1.65.1.0ubuntu1 

[poett1]

same error here. Any suggestions?

[flynneva]

-- Found PythonLibs: /usr/lib/aarch64-linux-gnu/libpython2.7.so (found version "2.7.17")

from your logs it looks like you have Python 2.7 installed, but boost is looking for boost python37.

either upgrade your python installation to 3.7 or change the CMake file to look for boost python27

[kjwoo31]

This worked for me in melodic (from link). If it already exists, then remove it with sudo rm -rf and try again.

cd /usr/lib/x86_64-linux-gnu
sudo ln -s libboost_python3.a libboost_python37.a
sudo ln -s libboost_python3.so libboost_python37.so

[akshay-ram-pp]

Edit vision_opencv/cv_bridge/CMakeLists.txt , Change line no 11 from find_package(Boost REQUIRED python37) to find_package(Boost REQUIRED python)

After doing so , it worked for me

[Mechazo11]

@AKSHAYRAMPP Thank you very much. This also worked for me too.

[Mechazo11]

This worked for me in melodic (from link). If it already exists, then remove it with sudo rm -rf and try again.

cd /usr/lib/x86_64-linux-gnu
sudo ln -s libboost_python3.a libboost_python37.a
sudo ln -s libboost_python3.so libboost_python37.so

@kjwoo31 using your commands says file already exists. What to do from here?

[kjwoo31]

This worked for me in melodic (from link). If it already exists, then remove it with sudo rm -rf and try again.

cd /usr/lib/x86_64-linux-gnu
sudo ln -s libboost_python3.a libboost_python37.a
sudo ln -s libboost_python3.so libboost_python37.so

@kjwoo31 using your commands says file already exists. What to do from here?

There are some instructions in the attached link. I just removed the existing files with sudo rm -rf command and tried again.