Trouble with hot reload in OC 1.8.3 and net8.0

[DavidStania]

Hello everyone,
I have a problem with HotReload in VS2022 17.10.5 (current).
No changes are applied. The application has to be restarted again and again to apply changes.

I have made several attempts:

1. Asp Net Core WebApp with .net8.0 without OC
   No problems! All changes are applied immediately.
2. Asp Net Core WebApp with .net7.0 with OC 1.7.2
   No problems! All changes are applied immediately. Also changes in the modules themselves.
3. Asp Net Core WebApp with .net8.0 with OC 1.8.3
   No changes are applied. However, HotReload registers changes.

I have recorded a video to demonstrate this. I currently have the problem on 4 independent computers.

I would be grateful for any advice!

[github-actions]

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[Piedone]

Could you please check with the latest main? This is what I see there, it works for me:

2024-08-02_20h15_50.mp4

Note that apart from saving the cshtml file, I didn't do anything, the browser reloaded itself.

[DavidStania]

I have tested it with the latest version. Exactly the same result.
I noticed that when I executed the dotnet watch command, the following message appeared: "Skipping configuring browser-refresh middleware since the target framework version is not supported. For more information see 'https://aka.ms/dotnet/watch/unsupported-tfm'."
So I had to specify the command with the framework dotnet watch --framework net8.0. The browser is also reloaded. As can be seen in your video. But without any changes.

[Piedone]

Just to confirm, you did the same as I did, with the latest main, with the latest VS, and in contrast to the video, don't seem changes to a cshtml file appear?

[DavidStania]

I can confirm. 100% the same like you did.

OC_net7_8_2.mp4

[Piedone]

Hmm. This looks like more of an issue with Razor Runtime Compilation rather than Hot Reload.

A couple of things:

1. Is this line hit for you?
2. What happens if you turn Hot Reload off under Options -> Debugging -> General?

[DavidStania]

This line is not hit cause 'refs' folder not exists! But I don't know why.
There is only a 'ref' folder here 'G:_Applications\repos\OrchardCore\src\OrchardCore.Cms.Web\obj\Debug\net8.0\ref'

If I create the folder manually, it remains empty during debugging and I only get an error page.

[Piedone]

Hmm. What happens if you turn Hot Reload off under Options -> Debugging -> General?

[DavidStania]

Strange!

Hot reload is disabled in global settings

And also in startprofile

But if changes exists:

[Piedone]

I don't know what's happening.

[DavidStania]

I told you. Very strange! And this is happens on 4 independent development machines.

[shinexyt]

Same issue: #15946

[Piedone]

Indeed, closing as a duplicate.