Tag: 未定义 引用

未定义的符号“vtable for …”和“typeinfo for …”？

几乎最后一步，但仍然有一些奇怪的erros …. bash-3.2$ make g++ -Wall -c -g Myworld.cc g++ -Wall -g solvePlanningProblem.o Position.o AStarNode.o PRM.o PRMNode.o World.o SingleCircleWorld.o Myworld.o RECTANGLE.o CIRCLE.o -o solvePlanningProblem Undefined symbols: "vtable for Obstacle", referenced from: Obstacle::Obstacle()in Myworld.o "typeinfo for Obstacle", referenced from: typeinfo for RECTANGLEin RECTANGLE.o typeinfo for CIRCLEin CIRCLE.o ld: symbol(s) not found collect2: ld returned 1 exit […]