dotnet-runtime: no compatible versions

[jromero]

kpdemo populate yields some build failures. It looks like the current setup can no longer support .net.

failed to satisfy "dotnet-runtime" dependency for stack "io.buildpacks.stacks.bionic" with version constraint "2.1.0": no compatible versions. Supported versions are: [3.1.17, 3.1.18, 5.0.8, 5.0.9]
Paketo .NET Core Runtime Buildpack 0.2.0
  Resolving Dotnet Core Runtime version
    Candidate version sources (in priority order):
      runtimeconfig.json -> "2.1.0"

    No exact version match found; attempting version roll-forward

[bayardwest]

We ran into this as well with an Azure Container Registry (ACR) pack command after upgrading a project from .NET 6.0 to .NET 8.0. In our case, we were running the command in the same directory as the project (.csproj) file when we needed to be a level higher where the solution (.sln) file was located. Previous versions of .NET tolerated that.

Using Azure pipelines, it may be more convenient to pass in ../. as the working directory as in:
az acr pack build --registry <<someregistryname>> --image testimage --pull --builder cloudfoundry/cnb ../.