News

Quick Tip: How to Try .NET Core 3.0 in Visual Studio 2019

Microsoft recently confirmed that the upcoming .NET Core 3.0 release won't be ready for use when Visual Studio 2019 hits general availability on April 2, as .NET Core 3.0 won't ship until the second half of this year.

But that doesn't mean you have to wait until the second half of this year to put .NET Core 3.0 through its paces with Visual Studio 2019. In fact, you can do that now with the VS 2019 Release Candidate.

Some developers are unaware of this fact, as evidenced by a Developer Community post last week titled "No .net core 3.0 preview in Visual Studio 2019 RC."

In that post, a developer said:

I downloaded VS 2019 RC. When I tried compile .net core 3.0 project, I got a problem
NETSDK1045	The current .NET SDK does not support targeting .NET Core 3.0.  
Either target .NET Core 2.2 or lower, or use a version of the .NET SDK that supports .NET Core 
In project properties in Target framework I don't see .net core 3 option to choose.
In VS 2019 preview I normaly can choose it and build the project.

While one developer noted that .NET Core 3.0 (still in preview) has to be downloaded manually to be used in VS 2019, that still didn't solve the problem for yet another developer who did download the .NET Core 3.0 preview only to find Visual Studio still didn't offer .NET Core 3.0 as a target framework.

Microsoft confirmed that "this is by design. .NET Core 3.0 will only be ready to RC much later than 16.0 and as such it is an out of band release to Visual Studio."

The last step, a Microsoft representative said, is to specifically opt in to use previews via the Visual Studio 2019 menus, specifically: Tools -> Options -> Projects and Solutions -> .NET Core -> Use Previews of the .NET Core SDK.

Opt In to .NET Core Previews
[Click on image for larger view.] Opt In to .NET Core Previews (source: David Ramel).

Then, upon a restart of the IDE, .NET Core 3.0 will appear in the list of target framework options.

For those visual learners out there, this procedure is explained in a video titled .NET Core 3 is not working in Visual Studio 2019 just published today (March 8) by Brian Lagunas, further speaking to the attention this issue is receiving lately in Microsoft developer land.

About the Author

David Ramel is an editor and writer for Converge360.

comments powered by Disqus

Featured

  • How to Do Machine Learning Evolutionary Optimization Using C#

    Resident data scientist Dr. James McCaffrey of Microsoft Research turns his attention to evolutionary optimization, using a full code download, screenshots and graphics to explain this machine learning technique used to train many types of models by modeling the biological processes of natural selection, evolution, and mutation.

  • Old Stone Wall Graphic

    Visual Studio Code Boosts Java Dependency Viewer

    Easier management of project code dependencies and improvements to extensions for popular Java frameworks and runtimes highlight the February update to Java in Visual Studio Code functionality.

  • Blule Squares

    Visual Studio 2019 for Mac 8.5 Preview Adds ASP.NET Core Authentication

    Microsoft, after shipping Visual Studio 2019 for Mac v8.4 with support for ASP.NET Core Blazor Server applications last month, is now previewing the v8.5 series, adding new authentication templates for ASP.NET Core along with other improvements.

  • Q&A with Brice Wilson: What's New in Angular 9

    We caught up with expert web developer/trainer Brice Wilson to get his take on Angular, which always appears at or near the top of periodic rankings of the most popular JavaScript-based web development frameworks.

  • Entity Framework Core Migrations

    Eric Vogel uses code samples and screenshots to demonstrate how to use Entity Framework Core migrations in a .NET Core application through the command line and in code.

.NET Insight

Sign up for our newsletter.

Terms and Privacy Policy consent

I agree to this site's Privacy Policy.

Upcoming Events