anchor.diff:  let outputBinariesNet45 = outputBinaries @@ "net45"
   let outputBinariesNetStandard = outputBinaries @@ "netstandard1.6"
   
  -let assemblyVersion = XMLRead true "./src/common.props" "" "" "//Project/PropertyGroup/VersionPrefix" |> Seq.head
   let buildNumber = environVarOrDefault "BUILD_NUMBER" "0"
  -let version = 
  +let versionSuffix = 
       match (getBuildParam "nugetprerelease") with
  -    | "dev" -> assemblyVersion + "." + buildNumber
  -    | _ -> assemblyVersion
  +    | "dev" -> "beta" + (if (not (buildNumber = "0")) then ("-" + buildNumber) else "")
  +    | _ -> ""
   
   Target "Clean" (fun _ ->
       ActivateFinalTarget "KillCreatedProcesses"
  
positive.code: )
  
  Target "Build" (fun _ ->   
      if getBuildParam "nugetprerelease" = "dev" then
          XmlPokeInnerText "./src/common.props" "//Project/PropertyGroup/VersionPrefix" version        
  
      DotNetCli.Build
          (fun p -> 
              { p with
                  Project = solution
                  Configuration = configuration })
  )
  
  //--------------------------------------------------------------------------------
  
negative.code: // Variables
  let configuration = "Release"
  let solution = "./src/Akka.sln"
  
  // Directories
  let toolsDir = __SOURCE_DIRECTORY__ @@ "tools"
  