RunTime Error : map/set iterators incompatible

Question

hi, i have Runtime Error "map/set iterators incompatible" in line &&&&&&

void Manager::Simulate(Military* military, Shalishut* shalishut,char* args[]){ Simulation* simulation = Simulation::GetInstance(); Time* time = Time::GetInstance();

multimap<int,Task*>::iterator itTasks;
itTasks = simulation->GetTasks().begin();
while(itTasks != simulation->GetTasks().end()){
&&&&&&      while (itTasks->second->GetTimeStamp() == time->GetTime()){
        TaskExecute(itTasks->second,military,shalishut,args);
        itTasks++;
    }
    // Unit take car of vehicles
    time->TimeIncrease();
}

}

what is the problem ?

Answer 1

Is "simulation" declared as a

 multimap<int,Task*>

?