Asp.net-core – Version conflict detected for Microsoft.CodeAnalysis.Common. Reference the package directly from the project to resolve this issue

asp.net-corefluentvalidationnuget-package

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?

Best Answer

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
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