E:[IU] : Failed to open the configuration file! Exiting...

This is outside Qt's scope, the message is not printed by Qt. From the linked discussion it would seem that the message is output by the Intel graphics driver.

YES It's not serious. I have updated the driver.But it doesn't work.

You are right. It's not worth putting  too much energy  on the small problem.

感谢你的意见。

凡事不能吹毛求疵，能用就好。

参考：https://bugreports.qt.io/browse/QTBUG-78747