How Can I open .Net Core 3.0 project in Visual Studio 2017?
I have downloaded the .NET Core 3.0 SDK from dotnet.microsoft.com and created new project wi
.Net Core 3.0 requires Visual Studio 2019 Preview 1, you can't use Visual Studio 2017. According to the .Net Blog, "Visual Studio 2019 will be the release to support building .NET Core 3 applications" and requires .Net 4.8
When creating a new application/project, the project declares a dependency on .Net Core 3.0 via the netcorepp3.0 target framework.