There was no runtime pack for Microsoft.AspNetCore.App available for the specified RuntimeIdentifier ‘browser-wasm’

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I finally made it work.

I did everything that guide said, except for the project file which I changed to this:

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net5.0</TargetFramework>
    <UserSecretsId>*****</UserSecretsId>
    <UseBlazorWebAssembly>true</UseBlazorWebAssembly>
  </PropertyGroup>
...

But I have no idea if it is correct when official upgrade guide says to use:

<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">

instead of:

<Project Sdk="Microsoft.NET.Sdk.Web">

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