After reinstalling VS2022 community, it says it needs to install .net core but then get's hung up

Peter Goossens 0

I reinstalled VS2022 community. I can create new projects, but if I try to open that or an older project, it says it needs to install .net core. It then goes on to load designer and gets hung up. Problem seems to be related with form1. All classes open, but when I try to open form1, the above problem starts

1 answer

Tianyu Sun-MSFT 29,446 Reputation points Microsoft Vendor

2024-03-07T03:22:04.1466667+00:00

Hello @Peter Goossens,

Welcome to Microsoft Q&A forum.

Is that older project based on .NET Core? Maybe .NET Core 3.0, 3.1?

I suggest firstly close VS, open VS Installer, click Modify, switch to Individual components and search for key word .NET Core. Since old framework like .NET Core is out of support, you may need to install it manually/separately.

If it doesn’t work, please try to download and install the .NET Core from here: Download .NET(scroll down and expand Out of support versions).

Please also try to close the solution(File > Close Solution) and reopen your project, see if the issue disappears.

Best Regards,

Tianyu

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Peter Goossens 0 Reputation points

2024-03-08T19:12:46.9066667+00:00

Hi Tianyu Sun: tx for having answered my first question. However, I have a question. When trying to download .net cor I get too many options and I do not know which one to choose. I also would ley me download versions like .net 6, but not .net core as such (the latter might not be relevant). If I close VS and loas installer I get .net 8.0 but that is the new VS2022 I just reinstalled. My guess is that it is not of the older projects. How do I get the .net version under which they were created (the older projects). How can I check the .net version they were created with?

Peter Goossens 0 Reputation points

2024-03-08T19:38:31.09+00:00

Also, how can I upgrade the older project to .net 8?

Peter Goossens 0 Reputation points

2024-03-08T19:51:11.6566667+00:00

Also, how can I check and update the .net version underwhich it was created?

Tianyu Sun-MSFT 29,446 Reputation points Microsoft Vendor

2024-03-11T08:38:53.1+00:00

Hello @Peter Goossens,

Thank you for your reply.

I do not know which one to choose.

You can download Windows x64 version of .NET 8.0.201 Installer, and then try to install it.

How do I get the .net version under which they were created.

There are two methods. One is open VS and open your project > right-click your project > Properties > properties page should display, you may find the Target framework(Application > General > Target framework).

The other method is right-click project > Unload Project > right-click it again > Edit Project File > in the opened .xxproj file, you may see <TargetFramework>net8.0-windows</TargetFramework>.

Also, how can I upgrade the older project to .net 8?

You can use the .NET Upgrade Assistant tool by following this tutorial: Overview of the .NET Upgrade Assistant.

Also, how can I check and update the .net version under which it was created?

I think this question is partly the same to above "How do I get the .net version under which they were created" question.

Besides, if you’d like to check the installed .NET(on your local machine), you can press Win + R, type and run CMD. In CMD, type and run dotnet --list-sdks.

As .NET is different from .NET Framework and .NET Core, and the error message mentioned .NET Core(out of support), I doubt the older project needs old out-of-support .NET Core, instead of the latest .NET. Of course, the out-of-support .NET Core can still be downloaded or installed as I mentioned in my above answer.

I think confirming the .NET version that your project is based on and then maybe update it, is correct. You may try above .NET Upgrade Assistant tool, and it’s easy to use.

Kind Regards,

Tianyu

Tianyu Sun-MSFT 29,446 Reputation points Microsoft Vendor

2024-03-20T05:53:54.0633333+00:00

Hello @Peter Goossens,

May I know if you have got any chance to check my reply?

Did you try to upgrade the project?

Please feel free to contact us if you have any further concerns.

Peter Goossens 0 Reputation points

2024-03-20T19:33:17.3533333+00:00

I have been travelling and no time to check your answer. Thanks for answering anyway. I will get to it as soon as possible
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After reinstalling VS2022 community, it says it needs to install .net core but then get's hung up

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