Version conflict detected for Microsoft.CodeAnalysis.Common. Reference the package directly from the project to resolve this issue

asp.net-core nuget-package fluentvalidation
Vahid Ghadiri picture Vahid Ghadiri · Jun 19, 2018 · Viewed 13k times · Source

I want to add the FluentValidation Nuget package in my asp.net core app through Nuget Package Manager.While adding I get this error:

Severity Code Description Project File Line Suppression State Error Version conflict detected for Microsoft.CodeAnalysis.Common. Reference the package directly from the project to resolve this issue. Project Name -> FluentValidation.AspNetCore 7.6.103 -> Microsoft.AspNetCore.Mvc 2.1.0 -> Microsoft.AspNetCore.Mvc.TagHelpers 2.1.0 -> Microsoft.AspNetCore.Mvc.Razor 2.1.0 -> Microsoft.CodeAnalysis.Razor 2.1.0 -> Microsoft.CodeAnalysis.Common (>= 2.8.0) Project Name -> Microsoft.VisualStudio.Web.CodeGeneration.Design 2.0.0 -> Microsoft.VisualStudio.Web.CodeGenerators.Mvc 2.0.0 -> Microsoft.VisualStudio.Web.CodeGeneration 2.0.0 -> Microsoft.VisualStudio.Web.CodeGeneration.EntityFrameworkCore 2.0.0 -> Microsoft.VisualStudio.Web.CodeGeneration.Core 2.0.0 -> Microsoft.VisualStudio.Web.CodeGeneration.Templating 2.0.0 -> Microsoft.VisualStudio.Web.CodeGeneration.Utils 2.0.0 -> Microsoft.CodeAnalysis.CSharp.Workspaces 2.3.1 -> Microsoft.CodeAnalysis.Workspaces.Common 2.3.1 -> Microsoft.CodeAnalysis.Common (= 2.3.1).

How can I solve this error?

Answer

Jordan picture Jordan · Aug 7, 2018

I had the same problem and was upgrading to 2.1, but for some reason I needed to manually upgrade my Microsoft.CodeAnalysis.Common package from 2.8.0 to 2.8.2

Install-Package Microsoft.CodeAnalysis.Common -Version 2.8.2

Related questions

An assembly specified in the application dependencies manifest (...) was not found

I upgraded Microsoft.AspNetCore from 2.0.3 to 2.0.5 and my WebAPI project, although running successfully locally, fails to start in production (IIS). Everything was fine in production until this upgrade. The error message produced in the log directory is as follows: Error: …

Read More
Unauthorized nuget package from Visual Studio Team Services using asp.net core rc2

I am unable to install/restore nuget packages from a Visual Studio Team Services feed in an asp.net core web application (RC2). I receive the following: error: Response status code does not indicate success: 401 (Unauthorized). I am running Visual …

Read More
AddTransient, AddScoped and AddSingleton Services Differences

I want to implement dependency injection (DI) in ASP.NET Core. So after adding this code to ConfigureServices method, both ways work. What is the difference between the services.AddTransient and service.AddScoped methods in ASP.NET Core? public void …

Read More