CODEWITHSUNDEEP
c#.net-coredotnet-clidotnet-publish
fharreau
fharreau

Reputation: 2347

Why do I have to specify the runtime identifier in the csproj for a publish?

I am doing the following to build my application:

The aim is to, build the whole solution once, including the test projects. Run the tests, and if they pass, to publish the endpoint app into a specific runtime. I don't want to rebuild anything once the first step is complete.

But doing so, I am getting the following error:

C:\Program Files\dotnet\sdk\8.0.205\Sdks\Microsoft.NET.Sdk\targets\Microsoft.PackageDependencyResolution.targets(266,5) : error NETSDK1047: Assets file 'MyApp\obj\project.assets.json' doesn't have a target for 'net8.0-windows/win-x64'. Ensure that restore has run and that you have included 'net8.0-windows' in the TargetFrameworks for your project. You may also need to include 'win-x64' in your project's RuntimeIdentifiers. [MyApp.csproj]

Here is my csproj:

<Project Sdk="Microsoft.NET.Sdk.Web">
  <PropertyGroup>
    <TargetFramework>net8.0-windows</TargetFramework>
  </PropertyGroup>
</Project>

If I set the runtime, it works. But I don't understand the point of the publish if everything is already set in stone in the csproj?

I also tried to perform a dotnet restore MyApp.csproj -r win-x64 between the build and the publish. It worked slightly better (I have a publish folder under bin/Release/net8.0-windows/win-x64 and it looks like everything is in), but gave me another error:

C:\Program Files\dotnet\sdk\8.0.205\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(351,5): error MSB3030: Could not copy the file "MyApp\bin\Release\net8.0-windows\win-x64\MyApp.runtimeconfig.json" because it was not found. [MyApp.csproj]

C:\Program Files\dotnet\sdk\8.0.205\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(351,5): error MSB3030: Could not copy the file "MyApp\bin\Release
net8.0-windows\win-x64\MyApp.deps.json" because it was not found. [MyApp.csproj]

C:\Program Files\dotnet\sdk\8.0.205\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(351,5): error MSB3030: Could not copy the file "bin\Release\net8.0-windows\win-x64\MyApp.xml" because it was not found. [MyApp.csproj]

So I know how to fix it (setting the runtimeidentifer into the csproj), but I would like to understand why I have to do this, and what is the point of the publish if I do so?

Upvotes: 3

Views: 1114

Answers (1)

shingo
shingo

Reputation: 27341

Because you specified RID in the publish command, it requires using the built files in the folder obj/Release/net8.0-windows/win-x64 for packaging and publishing. However you did not specify RID in the build command, so this folder does not exist, the publish command naturally failed.

In fact, you don't need to specify --no-build, because if the files in the obj folder are up-to-date, they won't be rebuilt.

Upvotes: 2

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