YAFU
(English is not my native language)
58
Compiled OIDN and copied libraries to my /usr/lib folder.
I get the following error:
$ ./blender
./blender: symbol lookup error: /usr/lib/libOpenImageDenoise.so.0: undefined symbol: _ZN3tbb10interface78internal15task_arena_base24internal_max_concurrencyEPKNS0_10task_arenaE
Apparently there are people who have reported similar error in Luxcore,
but I have no idea what the problem is with your Blender build (Kubuntu 18.04)