[Boost-users] Serialization and null pointers

Hello, I have an object graph that is being serialized using a binary archive. It saves to the file fine, however a class member is being serialized is a null pointer. When I go to open the file, I get an access violation in basic_iarchive.cpp on line 393: bpis_ptr->load_object_ptr(ar, t, co.file_version); t is 0x00000000 Is there a way around this? Thank you.