The little girl referred to bing and GPT part of the content write :
QT version can not find a valid Settings file for a number of possible reasons, For example, the Settings file can be corrupted, accidentally deleted, or overwritten by other programs. It can also be caused by inconsistent environment variables between two computers, such as QT_QPA_PLATFORM_PLUGIN_PATH or QT_PLUGIN_PATH. In addition, it is possible that the Qt library or Qt plug-in is not configured properly during installation, causing Qt to not load properly.
Specifically, if the Qt library is not configured correctly, you need to configure it during installation by modifying the qmake.conf file, for example:
# qmake configuration for Qt 5.13.2 (MSVC 2017, 32 bit)
#
# Written by qmake configuration wizard (Qt 5.13.2), 2017
#
MAKEFILE_GENERATOR = MSVC
CONFIG += ordered
QT_VERSION = 513
QT_DIR = C:\Qt\5.13.2\msvc2017\32bit
# QT_DIR = C:\Qt\5.13.2\msvc2017\64bit
In addition, you need to configure the Qt plugin correctly during installation, for example, copying all files in the qtbase\plugins directory to the qtbase\bin directory after installation. You can also create a qt.conf file in the qtbase\bin directory and add the following contents:
[Paths]
Plugins=../plugins
This will allow Qt to load the plugin properly.
The answer is not easy, so take it.
