This application failed to start because it could not find or load the Qt platform plugin "windows"

原因分析:

qt无法识别当前路径下的platform的dll文件,主要原因是路径配置或者安装路径有误。

解决办法:

将qt安装目录下的platform文件夹复制到qt项目debug文件夹中,或者是release文件夹中
This application failed to start because it could not find or load the Qt platform plugin "windows"
This application failed to start because it could not find or load the Qt platform plugin "windows"