Below is output from ex.ToString()
--------------------------- --------------------------- Apache.Ignite.Core.Binary.BinaryObjectException: Requesting mapping from grid failed for [platformId=1, typeId=349095370] ---> Apache.Ignite.Core.Common.JavaException: class org.apache.ignite.binary.BinaryObjectException: Requesting mapping from grid failed for [platformId=1, typeId=349095370] at org.apache.ignite.internal.processors.platform.binary.PlatformBinaryProcessor.processInStreamOutStream(PlatformBinaryProcessor.java:126) at org.apache.ignite.internal.processors.platform.PlatformTargetProxyImpl.inStreamOutStream(PlatformTargetProxyImpl.java:155) Caused by: java.lang.ClassNotFoundException: Requesting mapping from grid failed for [platformId=1, typeId=349095370] at org.apache.ignite.internal.MarshallerContextImpl.getClassName(MarshallerContextImpl.java:383) at org.apache.ignite.internal.processors.platform.binary.PlatformBinaryProcessor.processInStreamOutStream(PlatformBinaryProcessor.java:120) ... 1 more --- End of inner exception stack trace --- at Apache.Ignite.Core.Impl.Unmanaged.UnmanagedCallbacks.Error(Void* target, Int32 errType, SByte* errClsChars, Int32 errClsCharsLen, SByte* errMsgChars, Int32 errMsgCharsLen, SByte* stackTraceChars, Int32 stackTraceCharsLen, Void* errData, Int32 errDataLen) at Apache.Ignite.Core.Impl.Unmanaged.IgniteJniNativeMethods.TargetInStreamOutStream(Void* ctx, Void* target, Int32 opType, Int64 inMemPtr, Int64 outMemPtr) at Apache.Ignite.Core.Impl.PlatformTarget.DoOutInOp[TR](Int32 type, Action`1 outAction, Func`2 inAction) at Apache.Ignite.Core.Impl.Binary.BinaryProcessor.GetTypeName(Int32 id) at Apache.Ignite.Core.Impl.Binary.Marshaller.GetDescriptor(Boolean userType, Int32 typeId, Boolean requiresType, String typeName, Type knownType) at Apache.Ignite.Core.Impl.Binary.BinaryReader.ReadFullObject[T](Int32 pos, Type typeOverride) at Apache.Ignite.Core.Impl.Binary.BinaryReader.TryDeserialize[T](T& res, Type typeOverride) at Apache.Ignite.Core.Impl.Binary.BinaryReader.Deserialize[T](Type typeOverride) at Apache.Ignite.Core.Impl.Binary.BinaryReader.ReadBinaryObject[T](Boolean doDetach) at Apache.Ignite.Core.Impl.Binary.BinaryReader.TryDeserialize[T](T& res, Type typeOverride) at Apache.Ignite.Core.Impl.Binary.BinaryReader.Deserialize[T](Type typeOverride) at Apache.Ignite.Core.Impl.Cache.Query.QueryCursor`2.Read(BinaryReader reader) at Apache.Ignite.Core.Impl.Cache.Query.AbstractQueryCursor`1.ConvertGetBatch(IBinaryStream stream) at Apache.Ignite.Core.Impl.PlatformTarget.DoInOp[T](Int32 type, Func`2 action) at Apache.Ignite.Core.Impl.Cache.Query.AbstractQueryCursor`1.RequestBatch() at Apache.Ignite.Core.Impl.Cache.Query.AbstractQueryCursor`1.MoveNext() at VSS.Raptor.IgnitePOC.TestApp.Form1.button1_Click(Object sender, EventArgs e) in C:\Dev\VSS.Raptor.IgnitePOC\WindowsFormsApplication1\Form1.cs:line 254 --------------------------- OK --------------------------- *From:* Raymond Wilson [mailto:raymond_wil...@trimble.com] *Sent:* Tuesday, October 17, 2017 12:17 AM *To:* 'user@ignite.apache.org' <user@ignite.apache.org> *Subject:* RE: Error with ScanQuery Hi Dmitry, I don’t seem to get any Java exceptions reported in the log. Below is the inner exception detail from the IDE error dialog: class org.apache.ignite.binary.BinaryObjectException: Requesting mapping from grid failed for [platformId=1, typeId=349095370] at org.apache.ignite.internal.processors.platform.binary.PlatformBinaryProcessor.processInStreamOutStream(PlatformBinaryProcessor.java:126) at org.apache.ignite.internal.processors.platform.PlatformTargetProxyImpl.inStreamOutStream(PlatformTargetProxyImpl.java:155) Caused by: java.lang.ClassNotFoundException: Requesting mapping from grid failed for [platformId=1, typeId=349095370] at org.apache.ignite.internal.MarshallerContextImpl.getClassName(MarshallerContextImpl.java:383) at org.apache.ignite.internal.processors.platform.binary.PlatformBinaryProcessor.processInStreamOutStream(PlatformBinaryProcessor.java:120) ... 1 more From: Raymond. -----Original Message----- From: dkarachentsev [mailto:dkarachent...@gridgain.com <dkarachent...@gridgain.com>] Sent: Monday, October 16, 2017 11:18 PM To: user@ignite.apache.org Subject: Re: Error with ScanQuery Raymond, Without logs I see just that deserialization failed by some reason. Actually I more interested in exceptions that come from Ignite's java part if any. Thanks! -Dmitry -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/