You can run the application from VS 2017 and see that application will automatically run from VS 2019 as well.
A newer version of Visual Studio might not support certain projects at all, or it might require that you update a project so that it's no longer backwards-compatible. For current status on migration issues, refer to the Visual Studio Developer Community.
Open Visual Studio 2019 version 16.8 or later. On the start window, select Open a project or solution. Visual Studio opens an instance of File Explorer, where you can browse to your solution or project, and then select it to open it.
Visual Studio 2017 has more features over 2015 and it contains 2015's current features so you don't need 2015 alongside 2017. Just stick with 2017. And I don't think you will have any problems while opening 2013 and 2015 projects with Visual Studio 2017. Uninstall Tool is a good tool to use.
I've moved on to Visual Studio 2017 RC, but we still have people working on Visual Studio 2015. Currently when I create a project on 2017, it won't work on 2015. When the project is opened on VS2015 I keep getting the yellow triangles saying that there's a problem. And it won't build.
The error message associated with the yellow triangles is that it can't find those files. I am thinking that the issue is because of the new .csproj file that VS2017 uses instead of the project.json file that .net core has been using until now.
I thought that the projects created on VS2017 were backwards compatible with 2015. I guess they are not. Does anyone know if there's any way to create a project that can be worked on both VS2015 and VS2017? Thanks!
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