list iterator incrementable

i have an aged digest built controlling visible studio 2003 i recompiled vs2005 recently. however, during runtime, i following error:

list iterator incrementable

i traced way function:

void inputqueue::update()
{
    list<pcb>::iterator iter;
    list<pcb>::iterator itertemp;
    for(iter = begin(); iter != end(); iter++)
    {
        if(iter->arrivaltime == 0)
        {           
            readyqueue::getinstance()->add(*iter);
            itertemp = iter;
            iter++;
            erase(itertemp);
        }
    }
}

i'm c++ consultant distant vs debugger got me. somebody explain me problem is?

thanks