NuGet Can't Install Packages

Question

I created a new .NET core Web App and I am trying to add packages Microsoft.EntityframeworkCore and Microsoft.AspNetCore and I am getting the error:

package restore failed rolling back packages

I have tried clearing the NuGet Caches reinstalling VS 2017 and the problem persists, note the project is brand new.

Answer 1

Please make sure your VS 2017 already upgraded to 15.3.5, you can re-run the VS 2017 installer as administrator and if there has the ‘Update’ button, click it to update. Then check you also installed the latest .NET Core 2.0 SDK and then create a new ASP.NET core web application, choose ‘ASP.NET Core 2.0’ as below to create:

Then you can successfully install those 2 packages through Manage Nuget Packages like the following: