Enterprise Gateway .Net Runtime Error

Hi mitsu, FrankAndersenDK, v-qiuyu-msft I have exactly the same problem, this is the log of my gateway, could anyone resolve it?

DM.EnterpriseGateway Error: 0 : 2017-07-06T21:48:25.8833900Z DM.EnterpriseGateway	a07257e7-a54d-4766-bbfe-53633e5ae456	234b72e4-e889-488a-8ea1-0fe8afdff7a0	MDSR	9b23e3cd-35f9-48c2-aeb6-a7ad42604a8c	B3032B18 [DM.GatewayCore] Error serializing response: System.ArgumentNullException: Value cannot be null.
Parameter name: pUnk
   at System.Runtime.InteropServices.Marshal.GetObjectForIUnknown(IntPtr pUnk)
   at Microsoft.PowerBI.DataMovement.Pipeline.OleDbBase.IMultipleResultsExtensions.GetResult(IMultipleResults multipleResults)
   at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.Serialization.OleDbBinaryWriterSerializer.<GetRowsets>d__10.MoveNext()
   at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.Serialization.OleDbBinaryWriterSerializer.Serialize(OleDbBinaryPacketWriteStream oleDbPacketStream, Boolean isLast)
   at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.Serialization.OleDbBinaryWriterSerializer.Serialize(GatewaySerializationContext serializationContext, Int32 indexForFirstPacket, Boolean isLast)
   at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.Serialization.GatewaySerializer.<SerializeOleDbQueryResponseMultipleResults>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.Serialization.GatewaySerializer.<SerializeImpl>d__14.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.Serialization.GatewaySerializer.<>c__DisplayClass13_0.<<Serialize>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.PowerBI.DataMovement.Pipeline.Common.Diagnostics.PipelineTelemetryService.<ExecuteInActivity>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.Serialization.GatewaySerializer.<Serialize>d__13.MoveNext()