Fix appveyor pack issues.

FluentSim/FluentSim.csproj

@@ -1,6 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
+    <IsPackable>true</IsPackable>
     <TargetFramework>netstandard2.0</TargetFramework>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     <LangVersion>latest</LangVersion>

appveyor.yml

@@ -78,30 +78,8 @@ dotnet_csproj:
 #       build configuration       #
 #---------------------------------#
 
-# build platform, i.e. x86, x64, Any CPU. This setting is optional.
-platform: Any CPU
-
-# to add several platforms to build matrix:
-#platform:
-#  - x86
-#  - Any CPU
-
-# build Configuration, i.e. Debug, Release, etc.
-configuration: Release
-
-# to add several configurations to build matrix:
-#configuration:
-#  - Debug
-#  - Release
-
-build:
-  parallel: true                  # enable MSBuild parallel builds
-  project: FluentSim.sln          # path to Visual Studio solution or project
-  publish_nuget: true             # package projects with .nuspec files and push to artifacts
-  publish_nuget_symbols: true     # generate and publish NuGet symbol packages
-
-  # MSBuild verbosity level
-  verbosity: normal
+build_script:
+  - ps: dotnet build ".\FluentSim\FluentSim.csproj" --configuration Release --verbosity detailed
 
 #---------------------------------#
 #       tests configuration       #
@@ -134,9 +112,10 @@ deploy:
   #  server: https://my.nuget.server/feed
     api_key:
       secure: HMp6b4NigywSudx9+nVIr2gZaQWUdiOkUQE3jKQ7ung0Pwb/5Qcy8KA1HeZXywGw
+    artifact: 'FluentSim\bin\Release\FluentSim.{version}.nupkg'
   #  skip_symbols: false
   #  symbol_server: https://your.symbol.server/feed
-    # Deploy to GitHub Releases
+  # Deploy to GitHub Releases
   #- provider: GitHub
   #  artifact: /.*\.nupkg/           # upload all NuGet packages to release assets
   #  draft: false