Hi @Seong Hun Kim ,
Welcome to Microsoft Q&A!
Are you using Visual Studio or Visual Studio Code?
From the screenshot you shared, it seems be related to Visual Studio Code. The tag “vs-extensions” is related to Visual Studio, for more questions about Visual Studio Code, we suggest you post it to the Stack Overview tagged visual-studio-code forum or GitHub repository where you would get professional support for this product.
Thanks for your understanding.
Sincerely,
Anna
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