[humble] Can't find pylon/PylonIncludes.h about pylon-ros-camera HOT 11 CLOSED

Facing the same issue and the solution by @whoutman works for me. Somehow the cmake cannot find the library but the Pylon_FOUND is set to 1. So the if case for the FindPylon.cmake has been skipped.

I have modified the if case to the following also and managed to compiled the packages with pylon 7.3 👍

if (NOT ${Pylon_FOUND} OR "$ENV{Pylon_INCLUDE_DIRS}" STREQUAL "")
    include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/FindPylon.cmake")
endif()

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Just stumbled upon this, as well. Try using pylon SDK version 6.x. on 7.x they changed the way the Pylon config is exposed which is not understood by this package here.

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I am experiencing the same error. Downgrading to pylon 6.3 worked.

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Hello
I integrated the fixes suggested by @nachovizzo, PR #179.
Does it solve the issue?
Regards,
Francois

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Yeah I had to move to 7.x because the 6.x has no ARM Debian package. I find it weird how in the humble branch README it says that we should use 7.2 or later

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Unfortunately I bumped into this issue as well.

It seems that the cmake/FindPylon.cmake is not properly included in CMakeLists.txt, as I was able to compile when commenting out the if-statement around the include of this cmake-file, see https://github.com/basler/pylon-ros-camera/blob/humble/pylon_ros2_camera_component/CMakeLists.txt#L39

With this if-statement, no output was generated for the messages in the lines below (I commented those out, see https://github.com/basler/pylon-ros-camera/blob/humble/pylon_ros2_camera_component/CMakeLists.txt#L41-L43), while the following output was reported without the if-statement:

->    Pylon include directories: /opt/pylon/include
->    Pylon library directories: /opt/pylon/lib
->    Pylon libraries: pylonbase;pylonutility;GenApi_gcc_v3_1_Basler_pylon;GCBase_gcc_v3_1_Basler_pylon

Did I forget to run a specific script? Running e.g.
source /opt/pylon/bin/pylon-setup-env.sh /opt/pylon
does not seem to do the job.

As a reference:
pylon version 7.3.0 (downloaded deb package installer) with a x86 (64 Bit) architecture

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I am experiencing the same error. Downgrading to pylon 6.3 worked.

For me this worked as well

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Facing the same issue and the solution by @whoutman works for me. Somehow the cmake cannot find the library but the Pylon_FOUND is set to 1. So the if case for the FindPylon.cmake has been skipped.

I have modified the if case to the following also and managed to compiled the packages with pylon 7.3 +1

if (NOT ${Pylon_FOUND} OR "$ENV{Pylon_INCLUDE_DIRS}" STREQUAL "")
    include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/FindPylon.cmake")
endif()

Worked for me. :)

from pylon-ros-camera.

Facing the same issue and the solution by @whoutman works for me. Somehow the cmake cannot find the library but the Pylon_FOUND is set to 1. So the if case for the FindPylon.cmake has been skipped.

I have modified the if case to the following also and managed to compiled the packages with pylon 7.3 +1

if (NOT ${Pylon_FOUND} OR "$ENV{Pylon_INCLUDE_DIRS}" STREQUAL "")
    include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/FindPylon.cmake")
endif()

Work for me too.

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@FrancoisPicardDTI, any plan on fixing this? It would be ideal to be able to build the ROS 2 wrapper without having to patch the build system.

On the README.md it says that Pylon SDK 7.2+ should be installed but this conflicts with the way of finding the package. The provided solution by @Alex-Beh works so seems to be easy to include in the ros2 branch.

What do you think? I'm happy to open a PR to fix this

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Commenting out the if statement also worked on ROS noetic!

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