The TransferTransaction._build_proto_body() method does not validate that at least one transfer has been added before building the transaction. This allows users to create, freeze, sign, and execute a ...
/sketch/Animated_Eyes_2.ino.cpp.o:(.literal._Z5setupv+0x10): undefined reference to _Z10user_setupv' /sketch/Animated_Eyes_2.ino.cpp.o:(.literal._Z5framet+0x64 ...