Error when building Kodi Omega



Hi,

I have tried to build Kodi according to the instructions (Linux build guide). Unfortunately the script aborts after about 50% with an error message.

Terminal output:
frank@Curie:~/kodi-build$ cmake --build . -- VERBOSE=1 -j$(getconf _NPROCESSORS_ONLN) 2>&1 >err1.txt
In file included from /home/frank/kodi/xbmc/cores/RetroPlayer/savestates/SavestateFlatBuffer.cpp:12:
/home/frank/kodi-build/build/cores/RetroPlayer/messages/savestate_generated.h:11:41: error: static assertion failed: Non-compatible flatbuffers version included
   11 | static_assert(FLATBUFFERS_VERSION_MAJOR == 2 &&
      |                                         ^
/home/frank/kodi-build/build/cores/RetroPlayer/messages/savestate_generated.h:11:41: note: the comparison reduces to ‘(23 == 2)’
In file included from /home/frank/kodi-build/build/cores/RetroPlayer/messages/savestate_generated.h:16:
/home/frank/kodi-build/build/cores/RetroPlayer/messages/video_generated.h:11:41: error: static assertion failed: Non-compatible flatbuffers version included
   11 | static_assert(FLATBUFFERS_VERSION_MAJOR == 2 &&
      |                                         ^
/home/frank/kodi-build/build/cores/RetroPlayer/messages/video_generated.h:11:41: note: the comparison reduces to ‘(23 == 2)’
gmake[2]: *** [build/cores/RetroPlayer/savestates/CMakeFiles/retroplayer_savestates.dir/build.make:90: build/cores/RetroPlayer/savestates/CMakeFiles/retroplayer_savestates.dir/SavestateFlatBuffer.cpp.o] Fehler 1
gmake[1]: *** [CMakeFiles/Makefile2:9107: build/cores/RetroPlayer/savestates/CMakeFiles/retroplayer_savestates.dir/all] Fehler 2
gmake[1]: *** Auf noch nicht beendete Prozesse wird gewartet …
gmake: *** [Makefile:146: all] Fehler 2

The hopefully complete logfiles are here: Log1 und Log2
Can anyone here give me hints on how to fix this error?

best regards
Frank