ASPNet Core - the call is ambiguous in Startup.cs configure

Question

asp.net core .net 461

A dependency in my project.json is causing ambiguity errors, I'm having trouble locating it. Any help is appreciated!

This is similar to this question, but it's not as obvious (to me) where the problem lies.

Startup.cs

project.json

"dependencies": {
 "Glimpse": "2.0.0-beta1",
"log4net": "2.0.8",
"MailKit": "1.16.0",
"Microsoft.ApplicationInsights.AspNetCore": "2.0.0",
"Microsoft.AspNetCore.Authentication": "1.1.2",
"Microsoft.AspNetCore.Authentication.JwtBearer": "1.1.2",
"Microsoft.AspNetCore.Diagnostics": "1.0.0",
"Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.1.2",
"Microsoft.AspNetCore.Mvc": "1.0.1",
"Microsoft.AspNetCore.ResponseCaching": "1.1.2",
"Microsoft.AspNetCore.ResponseCompression": "1.0.2",
"Microsoft.AspNetCore.Routing": "1.0.1",
"Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
"Microsoft.AspNetCore.Server.Kestrel": "1.0.1",
"Microsoft.AspNetCore.StaticFiles": "1.1.2",
"Microsoft.EntityFrameworkCore": "1.1.2",
"Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
"Microsoft.Extensions.Configuration.UserSecrets": "1.1.2",
"Microsoft.Extensions.Logging.Console": "1.0.0",
"Microsoft.Extensions.Logging.Debug": "1.0.0",
"Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.1.0",
"MimeKit": "1.16.0",
  },

Try to update Microsoft.Extensions.Logging.* packages. Then, as usual, try to close VS, delete .vs folder, run dotnet restore from CMD. — Ilya Chumakov
– Ilya Chumakov, Commented May 11, 2017 at 20:36
I would start by upgrading to asp.net core 1.1.x if possible as there were some pretty major changes and improvements. That may or may not solve your specific problem but it will probably make your life easier in the long run. — univ
– univ, Commented May 12, 2017 at 2:57
Look at your dependency graph in VS Project view (open every tree of Dependencies "folder" until you find the dependency which uses an very outdated ASP.NET Core version) — Tseng
– Tseng, Commented May 12, 2017 at 6:03
removing Glimpse, running dotnet restore and restarting vs seemed to help. Thanks for the advice guys - @Ilya if you make your comment the answer I'll accept. — proggrock
– proggrock, Commented May 12, 2017 at 21:19

Ilya Chumakov · Accepted Answer · 2017-05-13 09:08:48Z

2

Try to update Microsoft.Extensions.Logging.* packages. Then, as usual:

Close Visual Studio.
Delete .vs folder.
Run dotnet restore from CMD.

answered May 13, 2017 at 9:08

Ilya Chumakov

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