build error in ubuntu16.04 ,the lastest stable version.

[TechyRio]

i install the software cite this way: https://scaron.info/teaching/installing-openrave-on-ubuntu-16.04.html i have got clone the latest_stable .but when i run in cmmand "make - j4",it has something error as follows.i am a new for openrave.thanks a lot!

/home/wuxr/collada-dom/build/OpenSceneGraph/build/fcl/build/openrave/plugins/logging/viewerrecorder.cpp:876:40: error: ‘av_destruct_packet’ was not declared in this scope av_destruct_packet(&pkt); ^ /home/wuxr/collada-dom/build/OpenSceneGraph/build/fcl/build/openrave/plugins/logging/viewerrecorder.cpp:880:32: error: ‘av_destruct_packet’ was not declared in this scope av_destruct_packet(&pkt); ^ /home/wuxr/collada-dom/build/OpenSceneGraph/build/fcl/build/openrave/plugins/logging/viewerrecorder.cpp: In member function ‘void ViewerRecorder::_StartVideo(const string&, double, int, int, int, int)’: /home/wuxr/collada-dom/build/OpenSceneGraph/build/fcl/build/openrave/plugins/logging/viewerrecorder.cpp:795:44: warning: ignoring return value of ‘int avformat_write_header(AVFormatContext*, AVDictionary**)’, declared with attribute warn_unused_result [-Wunused-result] avformat_write_header(_output,NULL); ^ plugins/logging/CMakeFiles/logging.dir/build.make:75: recipe for target 'plugins/logging/CMakeFiles/logging.dir/viewerrecorder.cpp.o' failed make[2]: *** [plugins/logging/CMakeFiles/logging.dir/viewerrecorder.cpp.o] Error 1 CMakeFiles/Makefile2:1858: recipe for target 'plugins/logging/CMakeFiles/logging.dir/all' failed make[1]: *** [plugins/logging/CMakeFiles/logging.dir/all] Error 2 Makefile:129: recipe for target 'all' failed make: *** [all] Error 2

[liuxuyang2000]

I've had the same problem and I haven't solved it yet.

[Tx-Charlie]

hi~

It seems you missed the libavdevice-dev. Maybe you could try those scritps: openrave-installation.