CODEWITHSUNDEEP
c#dockerjenkinsasp.net-core
Niranjan
Niranjan

Reputation: 2229

Duplicate 'Microsoft.AspNetCore.Razor.Hosting.RazorLanguageVersionAttribute' attribute

I am working on net core application. I am building my application in jenkins using docker. My sample repository is at

https://github.com/niranjan2020/JenkinsPipeLine

Below is my command to build the application.

docker build -t jenkinspipeline/jenkins -f Dockerfile .

Below is my .csproj.

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp2.1</TargetFramework>
    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
   <GenerateAssemblyInfo>false</GenerateAssemblyInfo>

  </PropertyGroup>

  <ItemGroup>
    <Folder Include="wwwroot\" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.App" />
    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.2" PrivateAssets="All" />
    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.0.2105168" />
  </ItemGroup>

</Project>

When I start build in jenkins I get the below error

obj/Release/netcoreapp2.1/jenkins.RazorAssemblyInfo.cs(11,12): error CS0579: Duplicate 'Microsoft.AspNetCore.Razor.Hosting.RazorLanguageVersionAttribute' attribute [/app/jenkins.csproj] obj/Release/netcoreapp2.1/jenkins.RazorAssemblyInfo.cs(12,12): error CS0579: Duplicate 'Microsoft.AspNetCore.Razor.Hosting.RazorConfigurationNameAttribute' attribute [/app/jenkins.csproj] The command '/bin/sh -c dotnet publish -c Release -o output' returned a non-zero code: 1

What I tried so far is,

Deleted bin and object folder and rebuild-ed. Added GenerateAssemblyInfo as false in .csproj Restarted Jenkins

I added below configuration as per

https://johnkoerner.com/csharp/dealing-with-duplicate-attribute-errors-in-net-core/

<GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
    <GenerateAssemblyDescriptionAttribute>false</GenerateAssemblyDescriptionAttribute>
    <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
    <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>

This also dint work for me. Below is my Jenkins.RazorAssemblyInfo.cs file which I commented and tried but dint work out.

using System;
using System.Reflection;

[assembly: Microsoft.AspNetCore.Mvc.ApplicationParts.RelatedAssemblyAttribute("Jenkins.Views")]
[assembly: Microsoft.AspNetCore.Razor.Hosting.RazorLanguageVersionAttribute("2.1")]
[assembly: Microsoft.AspNetCore.Razor.Hosting.RazorConfigurationNameAttribute("MVC-2.1")]
[assembly: Microsoft.AspNetCore.Razor.Hosting.RazorExtensionAssemblyNameAttribute("MVC-2.1", "Microsoft.AspNetCore.Mvc.Razor.Extensions")]

// Generated by the MSBuild WriteCodeFragment class.

Nothing worked for me. Can someone help me to figure out the issue? Any help would be greatly appreciated. Thanks in advance

Upvotes: 0

Views: 1728

Answers (1)

Edward
Edward

Reputation: 30056

There are multiple issues in your repository:

  1. Clean up your project, there are multiple leve Jenkins.sln and Jenkins.csproj in your project. Remove useless content.
  2. I made a test with your JenkinsPipeLine\Jenkins\Jenkins

  3. For the dockerfile in JenkinsPipeLine\Jenkins\Jenkins, its image is wrong, your project target netcoreapp2.1, you image should be mcr.microsoft.com/dotnet/core/sdk:2.1. And the dockerfile is 

    FROM mcr.microsoft.com/dotnet/core/sdk:2.1 AS build-env
WORKDIR /app
COPY *.csproj ./
RUN dotnet restore
COPY . ./
RUN dotnet publish -c Release -o output
# Runtime image
FROM mcr.microsoft.com/dotnet/core/aspnet:2.1
WORKDIR /app
COPY --from=build-env /app/output .
ENTRYPOINT ["dotnet", "jenkins.dll"]

  4. Run the command docker build -t jenkins -f Dockerfile . from JenkinsPipeLine\Jenkins\Jenkins

Upvotes: 1

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