Hello,

Im studying Openness, the document show can access PLC service - crossreference, i tried put demo code to visual studio, but meet error:  CS0246: the type or namespace name ‘CrossReferenceService’ could not be found…

PlcSoftware plcSoft = (PlcSoftware)softTarget;
PlcBlockSystemGroup blockComposition = plcSoft.BlockGroup;
PlcBlockComposition blockFolder = blockComposition.Blocks;
PlcBlock mainBlock = blockComposition.Blocks.Find("Main");
if (mainBlock != null)
{
try
{
CrossReferenceService crossReferenceService =
mainBlock.GetService<CrossReferenceService>();

}
catch (Exception e)
{
Console.WriteLine(e.Message);
}}}

but i already add reference about Siemens.Engineering:

using System;
using System.Collections.Generic;
using System.IO;
using Siemens.Engineering;
using Siemens.Engineering.Cax;
using Siemens.Engineering.Compiler;
using Siemens.Engineering.Compare;
using Siemens.Engineering.Download;
using Siemens.Engineering.Hmi;
using Siemens.Engineering.Hmi.Cycle;
using Siemens.Engineering.Hmi.Communication;
using Siemens.Engineering.Hmi.Globalization;
using Siemens.Engineering.Hmi.RuntimeScripting;
using Siemens.Engineering.Hmi.Screen;
using Siemens.Engineering.Hmi.Tag;
using Siemens.Engineering.Hmi.TextGraphicList;
using Siemens.Engineering.HW;
using Siemens.Engineering.HW.Extensions;
using Siemens.Engineering.HW.Features;
using Siemens.Engineering.HW.Utilities;
using Siemens.Engineering.Library;
using Siemens.Engineering.Library.MasterCopies;
using Siemens.Engineering.Library.Types;
using Siemens.Engineering.SW;
using Siemens.Engineering.SW.Blocks;
using Siemens.Engineering.SW.ExternalSources;
using Siemens.Engineering.SW.Tags;
using Siemens.Engineering.SW.TechnologicalObjects;
using Siemens.Engineering.SW.TechnologicalObjects.Motion;
using Siemens.Engineering.SW.Types;
using Siemens.Engineering.Upload;

do you meet same problem?

Also, is there any more manual/document for openness development?