username@hostname:~/temp/opc-ua-test/publish$ ./ConsoleApp Starting EasyUAClient message args: Information(111): OPC-UA engine application info 'Time' -> UtcNow: 08/26/2021 07:00:25, Now: 08/26/2021 07:00:25, TickCount: 179887553. EasyUAClient message args: Information(111): OPC-UA engine application info 'Debugger' -> IsAttached: False. EasyUAClient message args: Information(111): OPC-UA engine application info 'AssemblyAttributes' -> AssemblyConfiguration: "Release". EasyUAClient message args: Information(111): OPC-UA engine application info 'ExecutingAssembly' -> FullName: "OpcLabs.BaseLib, Version=5.61.343.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", Location: "/home/username/temp/opc-ua-test/publish/OpcLabs.BaseLib.dll", GlobalAssemblyCache: False. EasyUAClient message args: Information(111): OPC-UA engine application info 'AppDomain' -> Id: 1. EasyUAClient message args: Information(111): OPC-UA engine application info 'SystemAssembly' -> FullName: "System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e", Location: "/home/username/temp/opc-ua-test/publish/System.Private.CoreLib.dll", GlobalAssemblyCache: False. EasyUAClient message args: Information(111): OPC-UA engine application info 'Clr' -> ClrVersion: "5.0.9", PtrSize: 8. EasyUAClient message args: Information(111): OPC-UA engine application info 'RuntimeInformation' -> OSArchitecture: X64, OSDescription: "Linux 5.4.0-77-generic #86-Ubuntu SMP Thu Jun 17 02:35:03 UTC 2021", ProcessArchitecture: X64, FrameworkDescription: ".NET 5.0.9". EasyUAClient message args: Information(111): OPC-UA engine application info 'RuntimeFramework' -> FullName: ".NETCoreApp,Version=v5.0", Identifier: ".NETCoreApp", Profile: "", Version: 5.0. EasyUAClient message args: Information(111): OPC-UA engine application info 'Process' -> Is64BitProcess: True, CurrentDirectory: "/home/username/temp/opc-ua-test/publish", Id: 3319641. EasyUAClient message args: Information(111): OPC-UA engine application info 'User' -> Name: "username", DomainName: "hostname", Interactive: True. EasyUAClient message args: Information(111): OPC-UA engine application info 'OSConfiguration' -> MachineName: "hostname", SystemPageSize: 4096. EasyUAClient message args: Information(111): OPC-UA engine application info 'OperatingSystem' -> VersionString: "Unix 5.4.0.77". EasyUAClient message args: Information(111): OPC-UA engine application info 'Environment' -> Is64BitOperatingSystem: True, SystemDirectory: "". EasyUAClient message args: Information(111): OPC-UA engine application info 'Computer' -> ProcessorCount: 4. EasyUAClient message args: Information(101): The OPC-UA engine is connecting to the underlying subsystems. EasyUAClient message args: Information(106): The OPC-UA engine failed at tick 179887585 and will retry in 600000 milliseconds. EasyUAClient message args: Warning(2): INTERNAL WARNING. The OPC-UA engine has encountered an unexpected situation. OPC-UA engine 'EasyUAClientEngine' exception: No SDK application configuration is available; 1 provider(s) attempted. + This is an engine-level error. EasyUAClient message args: Error(102): The OPC-UA engine failed to connect to the underlying subsystems. No SDK application configuration is available; 1 provider(s) attempted. + This is an engine-level error.. EasyUAClient message args: Information(107): OPC-UA engine failure details. StackTrace: EasyUAClient message args: Information(1201): Licensing for EasyUAClient component started, license serial number 1111111120, issuer name "OPC Labs", subject name "*". EasyUAClient message args: Information(101): The OPC-UA engine is connecting to the underlying subsystems. EasyUAClient message args: Information(106): The OPC-UA engine failed at tick 179887701 and will retry in 600000 milliseconds. EasyUAClient message args: Error(102): The OPC-UA engine failed to connect to the underlying subsystems. No SDK application configuration is available; 1 provider(s) attempted. + This is an engine-level error.. EasyUAClient message args: Information(107): OPC-UA engine failure details. StackTrace: EasyUAClient message args: Information(2026): The OPC-UA client session on endpoint URL "opc.tcp://10.1.125.86:4840" failed at tick 179887873 and will retry in 10000 milliseconds. EasyUAClient message args: Warning(3201): The status subscription for an OPC-UA session on endpoint URL "opc.tcp://10.1.125.86:4840" is in failure. Further such warnings on this session will not be logged. No SDK application configuration is available; 1 provider(s) attempted. + This is an engine-level error. EasyUAClient message args: Information(2021): The OPC-UA client session with connect sequence number 1 is connecting to endpoint URL "opc.tcp://10.1.125.86:4840". EasyUAClient message args: Warning(2022): The OPC-UA client session with connect sequence number 1 failed to connect to endpoint URL "opc.tcp://10.1.125.86:4840". No SDK application configuration is available; 1 provider(s) attempted. + This is an engine-level error. OpcLabs.EasyOpc.UA.OperationModel.UAException: An OPC-UA operation failure with error ID 'OpcLabs.UAEngine=204' occurred, originating from '' and with depth of 1. The inner exception, of type "OpcLabs.EasyOpc.UA.Engine.UAEngineException", contains details about the problem. ---> OpcLabs.EasyOpc.UA.Engine.UAEngineException: No SDK application configuration is available; 1 provider(s) attempted. + This is an engine-level error. + The client method called (or event/callback invoked) was 'ReadMultiple'. --- End of inner exception stack trace --- at OpcLabs.EasyOpc.UA.OperationModel.UAException.CheckSuccess(Exception exception) at OpcLabs.EasyOpc.UA.OperationModel.UAException.CheckSuccess(OperationResult operationResult) at OpcLabs.EasyOpc.UA.IEasyUAClientExtension.Read(IEasyUAClient client, UAReadArguments readArguments) at OpcLabs.EasyOpc.UA.IEasyUAClientExtension.Read(IEasyUAClient client, UAEndpointDescriptor endpointDescriptor, UANodeDescriptor nodeDescriptor) at ConsoleApp.Program.RunTest() in C:\ConsoleApp\Program.cs:line 49 Success: False