undefined reference to `_imp___ZN13QGraphicsView13setRenderHintEN8QPainter10RenderHintEb'

前言

　　qt报错undefined reference to `_imp___ZN13QGraphicsView13setRenderHintEN8QPainter10RenderHintEb'

　　这种一看就是缺少qt库拉，定位到报错代码 跟进去发现是

QGraphicsView 那么f1 复制QT += widgets即可

chartView->setRenderHint(QPainter::Antialiasing);