Hi @David Thielen ,
Welcome to Microsoft Q&A!
The Blazor Server App template has been removed in .NET 8. An alternative is to use a new Blazor project template: Blazor Web App, it supports .NET 8.0.
For more details, please refer to: New Blazor Web App project template.
Besides, you can also create a Blazor Server App using the .NET 7 framework. Then, right-clicking on the project node in the solution explorer > Properties > change the Target Framework to .NET 8.0.
Sincerely,
Anna
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