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Error "The requested operation cannot be performed" on a file in Blazor / .NET 8.0

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Blazor .NET Core 8 backend with a C# web assembly frontend.

I get an error

The requested operation cannot be performed

on a file with a user-mapped section open, and I then have to do build/clean, and the problem goes away.

I have looked for various situations that can occur, but it is possibly just when I stop debugging and then when I go to build again, apparently some VS 2022 internal workspace is corrupted.

Any thoughts?


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