用qt designer 的PixmapLabel控件放置了一张图片，ctr + T 预览时 没有问题，图片能够显示。编译也顺利通过，但运行时出现如下错误：
QPixmap::fromMimeSource: Cannot find pixmap "dawning server.jpg" in the mime source factory
QPixmap::fromMimeSource: Cannot find pixmap "dawning server.jpg" in the mime source factory
QPixmap::fromMimeSource: Cannot find pixmap "dawning server.jpg" in the mime source factory
QImage::smoothScale: Image is a null image
QImage::smoothScale: Image is a null image
QImage::smoothScale: Image is a null image
QImage::smoothScale: Image is a null image
在线的前辈帮忙看看？
