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• MartyG

  • April 15, 2021 06:34
  • Edited

  Hi Reza Abiri

  The link below contains guidance shared by a RealSense user about building rs-hello-realsense on Linux.  

  https://github.com/IntelRealSense/librealsense/issues/6797

  This advice is similar to guidance provided for building the rs-capture example.

  https://github.com/IntelRealSense/librealsense/issues/750#issuecomment-340266755

  The approach taken by the SDK with building examples is to build a set of them together with the CMake flag -DBUILD_EXAMPLES=true instead of having the RealSense user build them individually.  The built examples can then be launched.

  If the code of a particular example is modified then building again should only build what has been changed.

  https://github.com/IntelRealSense/librealsense/issues/2946#issuecomment-449290237

   

  I would also recommend using the examples archive on the librealsense GitHub, as it provides the full project files for the example programs.

  https://github.com/IntelRealSense/librealsense/tree/master/examples

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• Reza Abiri

  • April 20, 2021 01:22

  Hello MartyG,

  Thank you for your post and help. I have similar OS to this user. But, I am facing an error on building the project. please see following after running these lines in Ubuntu 18. Not sure what is wrong. Just to clarify I used this installation method: https://github.com/IntelRealSense/librealsense/blob/master/doc/distribution_linux.md

   

  cd librealsense-master
  mkdir build && cd build
  cmake ../ -DBUILD_EXAMPLES=true
  sudo make uninstall && make clean && make && sudo make install

   

  /librealsense-master/build/third-party/libusb/libusb/core.c:23:10: fatal error: config.h: No such file or directory
  #include "config.h"

  Thank you for your help!

   

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• MartyX Grover

  • April 20, 2021 06:55

  Regarding, the above error, could you try inputting the command below please:

  sudo apt-get install libusb-1.0-0-dev

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• Reza Abiri

  • April 21, 2021 19:43

  Thank you very much for your help! I installed that. After that, actually it worked by resolving another issue related to GL:

  https://github.com/IntelRealSense/librealsense/issues/5232

  Right now, the rs-hello-realsense example is working. Overall, I feel simple installation of SDK from this page (https://github.com/IntelRealSense/librealsense/blob/master/doc/distribution_linux.md) does not help to run the example codes. I think these errors could be resolved automatically if I installed from source (?) (https://github.com/IntelRealSense/librealsense/blob/master/doc/installation.md).

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• MartyG

  • April 21, 2021 20:49
  • Edited

  If you installed the librealsense2-utils package using the instruction sudo apt-get install librealsense2-utils in the distribution_linux.md installation instructions then it should have installed the demos and tools.  If you are able to launch rs-hello-realsense then I would expect this demo and tool installation to have been successful.

  A list of example programs can be found in the link below.

  https://github.com/IntelRealSense/librealsense/tree/master/examples

   

  Please try launching some of the examples by adding rs- onto the front of the example names listed in the link above and inputting the name into the Ubuntu terminal (rs-capture for capture, rs-multicam for multicam, rs-sensor-control for sensor-control, etc).

   

  You can look in the folder usr/local/bin/ to check whether the built examples are there.

   

  The link below also provides a useful list of example filenames in the bin folder.

  https://github.com/IntelRealSense/librealsense/issues/6568#issuecomment-644355010

   

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