nugetartifact.yml

name: CI

on: [push]

jobs:
  build:
    runs-on: windows-latest
    steps:
    - uses: actions/checkout@v1
      name: 'Checkout'
    - uses: actions/setup-dotnet@v1
      with:
        dotnet-version: '3.0.100-preview3-010431'
      name: 'Setup .NET Core 3'
    - run: |
        dotnet restore
        dotnet build --no-restore --configuration Release
        dotnet test Tests.csproj --no-build --configuration Release
        mkdir ${{ github.workspace }}/package
        dotnet pack --no-build -c Release --output "${{ github.workspace }}/package"
    - uses: actions/upload-artifact@v1
      with:
        name: nuget
        path: ${{ github.workspace }}/package
      name: 'Upload Package'

Hey @ethomson, 'Upload Package' will never be executed because there is no matrix.os defined in this script. Am i right ?

Oops, thanks @edbighead! Appreciate you letting me know.