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.NET Core tooling update for Visual Studio 2017 version 15.9

Phillip Carter

Phillip

November 13th, 2018

Update! Starting with Visual Studio 2019, the option has moved to:

Tools > Options > Environment > Preview Features

Old post for posterity:

Starting with Visual Studio 2017 version 15.9, we’ve changed how the Visual Studio tooling for .NET consumes .NET Core SDKs. Prior to this change, installing a preview version of the .NET Core SDK would cause all Visual Studio tooling for .NET Core to use that SDK because it had a higher version.

We now have a compatibility check in the .NET Core SDK that allows for a given SDK to mark a minimum required Visual Studio version. This ensures that the Visual Studio tools for .NET Core will not try to use an SDK that requires a newer Visual Studio version.

For stable releases of Visual Studio, the tools will now default to consuming only the latest stable version of the SDK that is installed on your machine. If you install any preview SDKs, the tools will not consume them by default. You can change this setting in Tools > Options > Projects and Solutions > .NET Core:

For preview releases of Visual Studio, the tools will continue to consume the latest preview version of the SDK that is installed on your machine by default. You cannot change the option to turn this off for preview releases of Visual Studio because they usually require a corresponding preview SDK to work correctly.

If you specify an SDK explicitly with a global.json file, the tooling will adhere to normal global.json rules.

These changes will make the use of .NET Core within Visual Studio more predictable.

Happy hacking!

Phillip Carter
Phillip Carter
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9 comments

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  • Avatar
    Joseph Ellis
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    Is there an equivalent in Visual Studio for Mac? Can’t seem to find it!

  • Avatar
    Stephen Naughton
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    This does not appear to be in VS2019 Preview, from the article it’s only VS2017?

    • Avatar
      Randy PagelsMicrosoft employee
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      Yes, in VS 2019, change this setting in Tools > Options > Environment > Preview Features > Use preview of the .NET Core SDK.

      • Avatar
        Dominik Hasiwar
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        If I try to create a WPF App (.NET Core) project without the option activated, the error message still points me to “Tools | Options | Projects and Solutions | .NET Core”. @vs dev team: please update the message, too.

  • Avatar
    Bonyfus Martin
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    Weird. Still does not appear to me after enabling the preview feature and installing preview 8.

  • Avatar
    Jose Francisco Rico Moreno
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    Where can I see this option In VS 2019 Preview 2?