https://github.com/laumaya/GLC_lib/commit/f7e881eacff99b0aafe832910d35757ae2351224 renamed `GLC_StructOccurence` to `GLC_StructOccurrence`. However, GLC_Player still refers to `GLC_StructOccurence`.
laumaya/GLC_lib@f7e881e renamed
GLC_StructOccurencetoGLC_StructOccurrence.However, GLC_Player still refers to
GLC_StructOccurence.