Whoops forgot to update title to something better

please include the actual error

The error from the build output is included below the project IDs

that is just a log saying there was an error

Where would I find the error?

further up in the logs

Ah this is it, couldn't read the whole thing until I copied it out of the log viewer

#10 1.249   Determining projects to restore...
#10 1.258 /nix/store/0f43yfx91hg74bcp66qkbp97zv3ln27i-dotnet-sdk-6.0.413/sdk/6.0.413/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.TargetFrameworkInference.targets(144,5): error NETSDK1045: The current .NET SDK does not support targeting .NET 7.0.  Either target .NET 6.0 or lower, or use a version of the .NET SDK that supports .NET 7.0. [/app/my-first-giraffe.fsproj]
#10 ERROR: process "/bin/bash -ol pipefail -c dotnet restore" did not complete successfully: exit code: 1

The builder doesn't have the correct sdk installed

may I ask why you thought the portion of the build logs you included was the error? perhaps the scroll bar didn't show?

Been a while since I had to parse through these - saw something that said ERROR pointing to the step that failed

try setting NIXPACKS_CSHARP_SDK_VERSION

Nice, thanks! Worked great for the C# project, no effect on the F#, which isn't that surprising since the F# nixpacks docs page doesn't mention it

wonder if the global.json method would work

it doesn't look like the f sharp provider supports specifying a SDK version, you would have to write a simple dockerfile for that

Bummer, - but thanks for the help! Just a heads up, it appears that the C# provider, even with the NIXPACKS_CSHARP_SDK_VERSION version set, is using a preview version of dotnet 8 - which hit GA last November.

may I ask why that's a bummer? you get far more control over how your app is built with a dockerfile

I'm into Railway for the no-fuss deployment, and usually everything "just works". Haven't touched a dockerfile in a couple years since I switched jobs and love just being able to git-push and it does its thing. I know it's trivial to set up, but it's really just the fact that I have to do it at all

I see, thank you

Of course, and thanks again!

Do I mark this as solved or is that a you thing?

that one because it's going to be the answer to not using a preview version