ASP .NET Core 2 MVC error NU1202 creating project on VS 2017 and NET CLI

[macoratti]

To address your issues more quickly, please open the issue in the most appropriate repository. These are some of the most common repos:

Common ASP.NET and Entity Framework repos and projects:

• Documentation: https://github.com/aspnet/Docs
• MVC: https://github.com/aspnet/Mvc
• Entity Framework Core: https://github.com/aspnet/EntityFramework
• Entity Framework 6: https://github.com/aspnet/EntityFramework6
• SignalR: https://github.com/aspnet/SignalR
• ASP.NET Core in Docker: https://github.com/aspnet/aspnet-docker
• Microsoft.NET.Sdk.Web: https://github.com/aspnet/websdk
• Kestrel HTTP Server: https://github.com/aspnet/KestrelHttpServer
• ASP.NET Katana: https://github.com/aspnet/AspNetKatana
• and more! See a full list here: https://github.com/aspnet

Other common projects:

• NuGet: https://github.com/NuGet/home
• .NET Core CLI, SDK, or runtime: https://github.com/dotnet/core
• Visual Studio: https://developercommunity.visualstudio.com
• Visual Studio Code: https://github.com/microsoft/vscode
• Omnisharp (C# support for VS Code): https://github.com/omnisharp/omnisharp-vscode

[macoratti]

I have installed VS2017 15.3.0 and .NET Core 2.0 and have created a default Web MVC application on VS 2017 and I got the following errors:
Error NU1202 Package System.Threading.Overlapped 4.0.1 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package System.Threading.Overlapped 4.0.1 supports: netstandard1.3 (.NETStandard,Version=v1.3) Error NU1202 Package System.IO.Compression 4.1.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package System.IO.Compression 4.1.0 supports: - monoandroid10 (MonoAndroid,Version=v1.0) - monotouch10 (MonoTouch,Version=v1.0) - net45 (.NETFramework,Version=v4.5) - netcore50 (.NETCore,Version=v5.0) - netstandard1.1 (.NETStandard,Version=v1.1) - netstandard1.3 (.NETStandard,Version=v1.3) - portable-net45+win8+wpa81 (.NETPortable,Version=v0.0,Profile=Profile111) - win8 (Windows,Version=v8.0) - wpa81 (WindowsPhoneApp,Version=v8.1) - xamarinios10 (Xamarin.iOS,Version=v1.0) - xamarinmac20 (Xamarin.Mac,Version=v2.0) - xamarintvos10 (Xamarin.TVOS,Version=v1.0) - xamarinwatchos10 (Xamarin.WatchOS,Version=v1.0)

The same errors occours using NET CLI with the command: dotnet new mvc

I've tried update nuget: Install-Package NuGet.CommandLine -Version 4.3.0

But it doesn´t works.

So I have dotnet core2 installed, with Visual Studio 2017 with update 15.3.0 and NuGet 4.3.0

What am I missing here?

[hgrewa]

I am having the same issue on my installation for VS2017. Were you able to address it?

[mmunnis]

I am also having the same issue.

[hgrewa]

What worked for me was

• created an empty web .core project (nuget restore failed due to above issues)
• nuget manager -> removed Microsoft.AspNetCore.All (Note that I had issues removing it, I had to remvove, save project, close and restart VS. )
• nuget manager -> reinstall Microsoft.AspNetCore.All

That is all. It worked for me for this and all other core projects.

[lostllama]

@hgrewa Thank you so much! That solved my problem in an instant.

[nakinnubis]

thanks saved me too @hgrewa

[Eilon]

Closing because it doesn't look like any further action is required on this issue.

I also found a related post on StackOverflow with a proposed solution: https://stackoverflow.com/a/46876615/31668