Hello SRIHARI MADDINENI ,
Thanks for reaching out in the Microsoft Q&A!
Please confirm the version of Visual Studio you are using.
Blazor is not supported in Visual Studio 2017; the current version requires Visual Studio 2022. While you can create a Blazor project using the dotnet
command line and edit it in VS 2017, debugging won't be possible and the project may not load correctly. For the best experience, use Visual Studio 2022 or Visual Studio Code.
Reference : Blazor template is missing in Visual Studio 2017.
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