Using for .NET 6 preview

[simmotech]

I don't have .NET 5 on my machine, only the .NET 6 preview as I was planning to go directly to that when it is released in November.
I've made copies of my projects and was going to play with VS2022 (64bit - yay!) and .NET 6 to work out what will need changing.

I was hoping this app would upgrade my .NET Framework app (project files etc.) to the already installed .NET 6 but it seems that it is hard-coded for .NET 5 even though it correctly tells me that Framework '6.0.0-preview.5.21301.5' is installed.

Do I need to install the .NET 5 SDK to do an initial upgrade?
Is upgrading from .NET 5 to .NET 6 as simple as modifying the moniker?

[sunandabalu]

You can use --target-tfm-support <Current|LTS|Preview> to specify what TFM you want to upgrade to. Choosing Preview will get you to .NET 6. And yes you are correct, the default if no value is specified is .NET 5

[simmotech]

I had tried that but it still just shows the same message:

PS F:\net6test\SmartLibrarian> upgrade-assistant --target-tfm-support Preview F:\net6test\SmartLibrarian\SmartLibrarian.sln
It was not possible to find any compatible framework version
The framework 'Microsoft.NETCore.App', version '5.0.0' was not found.

• The following frameworks were found:
  6.0.0-preview.5.21301.5 at [C:\Program Files\Microsoft Visual Studio\2022\Preview\dotnet\runtime\shared\Microsoft.NETCore.App]

You can resolve the problem by installing the specified framework and/or SDK.

The specified framework can be found at:

• https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=5.0.0&arch=x64&rid=win10-x64
  PS F:\net6test\SmartLibrarian>

[simmotech]

I'd just downloaded what I thought was the latest, .NET 5.0.8 released on July 13, 2021. That installed fine but no change running the command.
Is 5.0.103 something different? (Thanks for the help BTW - I'm lost here)

[sunandabalu]

For some odd reason, the MSBuild version that we are using in the app seems to need that version. Could you try installing that?

[simmotech]

I uninstalled all 5.x SDKs (except for the one from Visual Studio 2022 which said the whole Visual Studio 2022 needed to be unloaded) and installed SDK 5.0.103 as suggested.

Still no luck.

I'll try uninstalling all v5.x and v6.x SDKs including Visual Studio 2022 then install SDK 5.0.103 then reinstall Visual Studio 2022

[sunandabalu]

Could you make sure you have the right workloads installed while you are installing VS 2022? Sometimes that also causes issues #723

[sunandabalu]

/cc @twsouthwick who is working on plumbing custom msbuildpath through which should help here.

[twsouthwick]

@simmotech I'm working on enabling a .NET 6 build of it, but has proven a bit more difficult than just adding the TFM. Hopefully by the end of the week with the next release there will be support!

[twsouthwick]

@simmotech This is available on the CI feed and will be released to NuGet beginning of next week. Please download it by the directions on the README and give it a whirl. You must be on at least v0.3.x for this to work