Updating Microsoft.AspNetCore.Components.WebAssembly from 8.0.5 to 8.0.6 breaks Blazor Webassembly application

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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[severity:I'm unable to use this version]
If I upgrade the Microsoft.AspNetCore.Components.WebAssembly and Microsoft.AspNetCore.Components.WebAssembly.DevServer components in my WebAssembly application from version 8.0.5 to 8.0.6, the WebAssembly application stops working - it no longer launched at all; Visual Studio just reports an error that "Process with an id of XXX is not running"

There are no errors in the Visual Studio Output window, nor in the Application or System error logs.

The problem is reproducible by creating a new project using the "Blazor WebAssembly Standalone App" template in Visual Studio - the app is created using the version 8.0.5 assemblies, and will work correctly. Update the project references to the version 8.0.6 assemblies, and now the project will not even start.

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Original Comments

Feedback Bot on 5/30/2024, 02:03 AM:

(private comment, text removed)

Will Godbe [MSFT] on 5/31/2024, 11:02 AM:

(private comment, text removed)

Stephen Halter [MSFT] on 5/31/2024, 11:28 AM:

(private comment, text removed)

Feedback Bot on 5/31/2024, 11:36 AM:

(private comment, text removed)

loophole on 5/31/2024, 08:46 PM:

(private comment, text removed)

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Original Solutions

(no solutions)

[DrewZero]

I had the same problem. I reverted to version 8.0.5 and it fixed it for now.

[javiercn]

@halter73 I assume this is patch worthy?

[HunterAhlquist]

This seems to have reappeared in 9.0.1
Having the same issue, no problems on 9.0.0