How to fix missing AspNet Core dependencies?

Question

So, I made changes to my project.json, which caused a rebuild that comes up with a bunch of unsolvable dependencies. How do you know what is going on here? This definitely worked as I wrote quite a lot of code for this project.json file.

"dependencies": { "EntityFramework.Commands": "7.0.0-*", "Microsoft.AspNet.Authentication.Cookies": "1.0.0-*", "Microsoft.AspNet.Diagnostics.Entity": "7.0.0-*", "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-*", "Microsoft.AspNet.IISPlatformHandler": "1.0.0-*", "Microsoft.AspNet.Authentication.JwtBearer": "1.0.0-rc2-*", "Microsoft.AspNet.Mvc": "6.0.0-*", "Microsoft.AspNet.Hosting": "1.0.0-*", "Microsoft.AspNet.Server.Kestrel": "1.0.0-*", "Microsoft.AspNet.StaticFiles": "1.0.0-*", "Microsoft.Extensions.Configuration.Json": "1.0.0-*", "AspNet.Security.OAuth.Validation": "1.0.0-*", "OpenIddict": "1.0.0-*", "System.IdentityModel.Tokens.Jwt": "5.0.0-rc2-301150021", "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-15958", "Microsoft.Extensions.Logging.Debug": "1.0.0-rc2-15958", "EntityFramework.Sqlite": "7.0.0-rc2-*", "EntityFramework.Sqlite.Design": "7.0.0-rc1-final", "Microsoft.Extensions.PlatformAbstractions": "1.0.0-*" } NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.staticfiles/index.json 514ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.identity.entityframeworkcore/index.json 498ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.hosting.abstractions/index.json 1743ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.authentication/index.json 1745ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.extensions.fileproviders.embedded/index.json 1791ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.extensions.fileproviders.composite/index.json 1859ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.identity/index.json 1892ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.cors/index.json 1901ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.mvc/index.json 1875ms NotFound https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.hosting/index.json 1887ms NotFound https://api.nuget.org/v3-flatcontainer/openiddict/index.json 1720ms 

Answer 1

OpenIddict and all aspnet-contrib projects have been updated to use the .NET CLI and the new ASP.NET Core 1.0 packages , so if you recently updated your project, you probably use the latest nightly builds, which require new ASP.NET and aspnet packages contrib.

To migrate, install the .NET Core toolkit .

You will also need to update your links to use ASP.NET Core RC2 packages. Here is an example updated project.json :

 "dependencies": { "AspNet.Security.OAuth.GitHub": "1.0.0-alpha4-final", "AspNet.Security.OAuth.Introspection": "1.0.0-alpha1-final", "AspNet.Security.OAuth.Validation": "1.0.0-alpha1-final", "Microsoft.AspNetCore.Authentication.Google": "1.0.0-rc2-final", "Microsoft.AspNetCore.Authentication.Twitter": "1.0.0-rc2-final", "Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-final", "Microsoft.AspNetCore.Mvc": "1.0.0-rc2-final", "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0-rc2-final", "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-final", "Microsoft.AspNetCore.StaticFiles": "1.0.0-rc2-final", "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0-rc2-final", "Microsoft.Extensions.Configuration.CommandLine": "1.0.0-rc2-final", "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0-rc2-final", "Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-final", "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-final", "Microsoft.Extensions.Logging.Debug": "1.0.0-rc2-final", "OpenIddict": "1.0.0-*" }, "frameworks": { "net451": { "dependencies": { "Microsoft.NETCore.Platforms": "1.0.1-rc2-24027" } }, "netcoreapp1.0": { "dependencies": { "Microsoft.NETCore.App": { "type": "platform", "version": "1.0.0-rc2-3002702" } }, "imports": [ "dnxcore50", "portable-net451+win8" ] } } 

Remember to also replace tags and use the new WebHostBuilder :

 public static class Program { public static void Main(string[] args) { var configuration = new ConfigurationBuilder() .AddEnvironmentVariables() .AddCommandLine(args) .Build(); var host = new WebHostBuilder() .ConfigureLogging(options => options.AddConsole()) .ConfigureLogging(options => options.AddDebug()) .UseConfiguration(configuration) .UseIISIntegration() .UseKestrel() .UseStartup<Startup>() .Build(); host.Run(); } } 

Good luck.

Answer 2

First of all, do not mix package versions. Use all rc1 or all rc2, etc. Also, do not use the packages "old" (.AspNet. - rc1 or older) with new packages (.AspNetCore. - rc2 - not yet released). If you decide to use the rc2 switch in dotnet from dnx. As pointed out by @Pinpoint's answer, now you need to use the aspnetcidev feed. You can find some examples of ASP.Net Core applications running on dotnet in this repo