12

I am trying to build an ASP.NET Core 2.0 application for .NET Framework 4.6.2 (not .NET Core) with TeamCity on Windows Server 2012R2.

The following components are installed in the server:

  • Microsoft .Net Core SDK - 2.0.0.0
  • Microsoft .Net Framework (4.5.2, 4.6, 4.6.2)
  • Microsoft Build Tools (2013, 2015, 2017)
  • Windows SDK 10.0
  • ...

TeamCity uses nuget version 4.1 and the solution file to restore dependent packages (see full log below for details).

Error:

[22:57:51]
[22:57:51]Errors in C:\path\to\project\Server\Server.csproj
[22:57:51]    Package Microsoft.AspNetCore 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2). Package Microsoft.AspNetCore 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51]    Package Microsoft.AspNetCore.Mvc 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2). Package Microsoft.AspNetCore.Mvc 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51]    One or more packages are incompatible with .NETFramework,Version=v4.6.2.
[22:57:51]    Package Microsoft.AspNetCore 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2) / win7-x86. Package Microsoft.AspNetCore 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51]    Package Microsoft.AspNetCore.Mvc 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2) / win7-x86. Package Microsoft.AspNetCore.Mvc 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51]    One or more packages are incompatible with .NETFramework,Version=v4.6.2 (win7-x86).
[22:57:51]
[22:57:51]Errors in C:\path\to\project\Server\Server.csproj
[22:57:51]    Package Microsoft.Extensions.FileProviders.Physical 2.0.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.Extensions.FileProviders.Physical 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51]    Package Microsoft.VisualStudio.Web.CodeGeneration.Contracts 2.0.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.VisualStudio.Web.CodeGeneration.Contracts 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51]    One or more packages are incompatible with .NETCoreApp,Version=v2.0.
[22:57:51]Process exited with code 1

Question:

I thought that .NET Framework 4.6.2 implements .NET Standard 2.0, therefore I don't understand why the packages are incompatible. On my local machine (with Visual Studio 2017 Update 3 (15.3)) nuget restore works fine.

Any ideas how to solve that error / how to further analyze the problem?

Project File (containing the nuget packages):

<Project Sdk="Microsoft.NET.Sdk.Web">
  <PropertyGroup>
    <TargetFramework>net462</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <Folder Include="wwwroot\" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore" Version="2.0.0" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.0" />
    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
  </ItemGroup>
  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.0" />
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="..\Server.Common\Server.Common.csproj" />
  </ItemGroup>
</Project>

Full Log Output

[Step 1/4] restore: Restoring NuGet packages for Server.sln (24s)
[22:57:27][restore] NuGet command: C:\path\to\buildagent\tools\NuGet.CommandLine.4.1.0\tools\NuGet.exe restore C:\path\to\project\Server.sln
[22:57:27][restore] Starting: C:\path\to\teamcity\temp\agentTmp\custom_script710236021428854.cmd
[22:57:27][restore] in directory: C:\path\to\project
[22:57:28][restore] MSBuild auto-detection: using msbuild version '15.3.409.57025' from 'C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\bin'.
[22:57:31][restore] Alle in "packages.config" aufgef�hrten Pakete sind bereits installiert.
[22:57:31][restore] Restoring packages for C:\path\to\project\Server\Server.csproj...
[22:57:31][restore] Restoring packages for C:\path\to\project\Server\Server.csproj...
[22:57:32][restore]   GET https://api.nuget.org/v3-flatcontainer/microsoft.visualstudio.web.codegeneration.tools/index.json
[22:57:32][restore]   GET https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore.mvc/index.json
[22:57:32][restore]   GET https://api.nuget.org/v3-flatcontainer/microsoft.aspnetcore/index.json
[...]
[22:57:41][restore]   OK https://api.nuget.org/v3-flatcontainer/microsoft.netcore.dotnetapphost/index.json 475ms
[22:57:41][restore]   GET https://api.nuget.org/v3-flatcontainer/microsoft.netcore.dotnetapphost/2.0.0/microsoft.netcore.dotnetapphost.2.0.0.nupkg
[22:57:41][restore]   OK https://api.nuget.org/v3-flatcontainer/microsoft.netcore.dotnetapphost/2.0.0/microsoft.netcore.dotnetapphost.2.0.0.nupkg 453ms
[22:57:42][restore] Installing System.Xml.XmlSerializer 4.0.11.
[22:57:42][restore] Installing System.Threading.Overlapped 4.0.1.
[22:57:42][restore] Installing System.Security.Principal 4.0.1.
[22:57:42][restore] Installing System.Dynamic.Runtime 4.0.11.
[22:57:42][restore] Installing System.Private.DataContractSerialization 4.1.1.
[22:57:42][restore] Installing Microsoft.Win32.Registry 4.0.0.
[...]
[22:57:48][restore] Installing System.Diagnostics.Contracts 4.0.1.
[22:57:48][restore] Installing System.Threading.Tasks.Dataflow 4.6.0.
[22:57:48][restore] Installing System.IO.Pipes 4.0.0.
[22:57:51][restore] Package Microsoft.Extensions.FileProviders.Physical 2.0.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.Extensions.FileProviders.Physical 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore] Package Microsoft.VisualStudio.Web.CodeGeneration.Contracts 2.0.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.VisualStudio.Web.CodeGeneration.Contracts 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore] One or more packages are incompatible with .NETCoreApp,Version=v2.0.
[22:57:51][restore] Committing restore...
[22:57:51][restore] Restore failed in 19,33 sec for C:\path\to\project\Server\Server.csproj.
[22:57:51][restore] 
[22:57:51][restore] Errors in C:\path\to\project\Server\Server.csproj
[22:57:51][restore]     Package Microsoft.AspNetCore 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2). Package Microsoft.AspNetCore 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore]     Package Microsoft.AspNetCore.Mvc 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2). Package Microsoft.AspNetCore.Mvc 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore]     One or more packages are incompatible with .NETFramework,Version=v4.6.2.
[22:57:51][restore]     Package Microsoft.AspNetCore 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2) / win7-x86. Package Microsoft.AspNetCore 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore]     Package Microsoft.AspNetCore.Mvc 2.0.0 is not compatible with net462 (.NETFramework,Version=v4.6.2) / win7-x86. Package Microsoft.AspNetCore.Mvc 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore] 
[22:57:51][restore]     One or more packages are incompatible with .NETFramework,Version=v4.6.2 (win7-x86).
[22:57:51][restore] NuGet Config files used:
[22:57:51][restore] 
[22:57:51][restore]     C:\Windows\system32\config\systemprofile\AppData\Roaming\NuGet\NuGet.Config
[22:57:51][restore] Errors in C:\path\to\project\Server\Server.csproj
[22:57:51][restore] 
[22:57:51][restore]     Package Microsoft.Extensions.FileProviders.Physical 2.0.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.Extensions.FileProviders.Physical 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore] Feeds used:
[22:57:51][restore]     https://api.nuget.org/v3/index.json
[22:57:51][restore]     Package Microsoft.VisualStudio.Web.CodeGeneration.Contracts 2.0.0 is not compatible with netcoreapp2.0 (.NETCoreApp,Version=v2.0). Package Microsoft.VisualStudio.Web.CodeGeneration.Contracts 2.0.0 supports: netstandard2.0 (.NETStandard,Version=v2.0)
[22:57:51][restore]     One or more packages are incompatible with .NETCoreApp,Version=v2.0.
[22:57:51][restore] 
[22:57:51][restore] Installed:
[22:57:51][restore]     151 package(s) to C:\path\to\project\Server\Server.csproj
[22:57:51][restore] Process exited with code 1
[22:57:51][restore] Process exited with code 1
[22:57:51][Step 1/4] Step Nuget Restore (NuGet Installer) failed
Improve this question

1 Answer 1

Reset to default
18

Using Nuget Version 4.3 fixed it :).

Improve this answer
Sign up to request clarification or add additional context in comments.

4 Comments

Are you using nuget.exe 4.3.0 downloaded from nuget.org? I have the same problem with it saying all the new AspNetCore and EntityFrameworkCore 2.0.0 references are not compatible with net462, but nuget in VS2017 works.
I installed the nuget version via team city as described here. But I think team city get it from nuget.org.
I was having the problem on Azure DevOps (VSTS) and adding a task to the job agent to get NuGet 4.3 before the restore task made it work. Confusing as of course it worked on my machine. Thank you.
Same issue for .net core 2.2 project referencing a .net 4.6.1 library. Was already using Nuget 4.4.1 in Azure DevOps. Upgraded to Nuget 4.9.3 worked fine.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.