Packages are not compatible with netcoreapp2.0

Question

Today this error ocurred again. Visual Studio does not recognize most of the packages instaled in Microsoft.AspNetCore.All but I'm also getting problems with:

• Microsoft.Extensions.Logging.Debug
• Microsoft.VisualStudio.Web.CodeGenerators.Mvc
• Microsoft.EntityFrameworkCore.Tools.DotNet

The error message is like this for every package:

The Microsoft.VisualStudio.Web.CodeGenerators.Mvc 2.0.0 package is not compatible with netcoreapp2.0 (.NETCoreApp, Version = v2.0). The Microsoft.VisualStudio.Web.CodeGenerators.Mvc 2.0.0 package supports: netstandard2.0 (.NETStandard, Version = v2.0)

I got pass this issue before doing the following:

• Updating VS to version 15.3.1
• Updating SDK to version 2.0

Now, I have updated NuGet.Commandline to 4.3 but the problem persists.

I'm also getting this alert:

There is no way to resolve the conflict between "System.Collections.NonGeneric, Version = 4.1.0.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a" and "System.Collections.NonGeneric, Version = 4.0.1.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a ". "System.Collections.NonGeneric, Version = 4.1.0.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a" will be chosen arbitrarily. Application D: \ Visual Studio \ MSBuild \ 15.0 \ Bin \ Microsoft.Common.CurrentVersion.targets 1964

Any other update I shall look into? Any help is welcome. Thanks

Answer 1

If you are using dotNET CLI, then just run this command,

dotnet nuget locals all --clear

Answer 2

Solved by updating Visual Studio to version 15.3.3

It seems this will be happen often until aspnetcore2.0 stabilizes itself.