Unable to install .wgt app from Usb/web link to Samsung TV(QM32C)

I have developed a web application using Tizen Studio.I can use tizen studio to debug remotely on tv, and the debugging is normal. I also created a tizen certificate and added a UUID, but when I packed it up and used usb to install it on the TV the prompt “Unable to find the installation file.”
I remember that I could still use a USB for installation last year, but suddenly it didn’t work this year. I don’t know what the reason is. Is there any expert who can help me check?
Tools using: Tizen Studio 6.0
There is a message when packing:The project is a 2.3 version based application, so that the project may not be working on a 8.0 plat form normally.

Hello,
For Smart TV questions, please log in to TV Seller Office: (Seller2.0), go to the 1:1 Q&A section, and ask a question.

Hi, How did you pack application for USB installation?
As I know, you need to use “USB Demo Packaging Tool” from TV Sellet Office.
You need to upload your .wgt file and tool will generate .tmg and .license files. Put then on USB stick in “userwidget” folder, connect USB to TV and application will be installed automaticaly