anchor.diff:  
           saveToFile content fileInfo |> ignore
   
  -let ImplicitPackages = [PackageName "NETStandard.Library"]  |> Set.ofList
  +let ImplicitPackages = Set.ofList [ PackageName "NETStandard.Library" ]
   
   let createProjectReferencesFiles (lockFile:LockFile) (projectFile:ProjectFile) (referencesFile:ReferencesFile) (resolved:Lazy<Map<GroupName*PackageName,PackageInfo>>) (groups:Map<GroupName,LockFileGroup>) (targetFrameworks: string option) (objDir: DirectoryInfo) =
       let projectFileInfo = FileInfo projectFile.FileName
  
positive.code:                 targetDir, overridenFile, force
  
          let! result = async {
              // TODO: Cleanup - Download gets a source and should be able to handle LocalNuGet as well, so this is duplicated
              match package.Source with
              | NuGetV2 _ | NuGetV3 _ ->
                  let source =
                      let normalizeFeedUrl s = (normalizeFeedUrl s).Replace("https://","http://")
  
                      let normalized = normalizeFeedUrl package.Source.Url
  
negative.code:     lockFile.GetGroupedResolution()
      |> Map.toList
      |> List.filter (fun ((group,package),resolved) ->
          let packSettings = defaultArg resolved.Settings.StorageConfig PackagesFolderGroupConfig.Default
          let includeVersionInPath = defaultArg resolved.Settings.IncludeVersionInPath false
          let resolvedPath = packSettings.Resolve root group package resolved.Version includeVersionInPath
          NuGetCache.IsPackageVersionExtracted(resolvedPath, package, resolved.Version) |> not)
      |> List.map fst
  
  