This schema bellow renerated wrong code when compiled with this flatc command.

flatc --cpp-ptr-type naked --cpp-std=c++17 --reflect-types --reflect-names --cpp-static-reflection --gen-object-api --cpp

table B {
id: int32;
}

table A {
b: [B];
}

ploef_generated.h: In member function »void A::UnPackTo(AT*, const flatbuffers::resolver_function_t*) const«: ploef_generated.h:834:167: fejl: request for member »get« in »_o->AT::b.std::vector<BT*>::operator[](((std::vector<BT*>::size_type)_i))«, which is of pointer type »__gnu_cxx::__alloc_traits<std::allocator<BT*>, BT*>::value_type« {aka »BT*«} (maybe you meant to use »->« ?) 834 | tbuffers::uoffset_t _i = 0; _i < _e->size(); _i++) { if(_o->b[_i]) { _e->Get(_i)->UnPackTo(_o->b[_i].get(), _resolver); } else { _o->b[_i] = (_e->Get(_i)->UnPack(_resolver)); } } } else { _o->b.resize(0); } }

If B is a struct to problem goes away.