IndexOutOfRangeException
   在 System.Buffer.InternalBlockCopy(Array src, Int32 srcOffsetBytes, Array dst, Int32 dstOffsetBytes, Int32 byteCount)
   在 System.IO.StreamWriter.Write(Char[] buffer, Int32 index, Int32 count)
   在 System.IO.TextWriter.SyncTextWriter.WriteLine(String value)
   在 System.Console.WriteLine(String value)
   在 WebSocketSharp.Logger.output(String message, LogLevel level)
   在 WebSocketSharp.Logger.Fatal(String message)
   在 WebSocketSharp.WebSocket.<>c__DisplayClass174_0.JXKPhvnodyg(Exception ex)
   在 WebSocketSharp.Ext.<>c__DisplayClass57_0.hubP1fYM4ID(IAsyncResult ar)
   在 System.Net.LazyAsyncResult.Complete(IntPtr userToken)
   在 System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
   在 System.Net.AsyncProtocolRequest.CompleteWithError(Exception e)
   在 System.Net.FixedSizeReader.ReadCallback(IAsyncResult transportResult)
   在 System.Net.LazyAsyncResult.Complete(IntPtr userToken)
   在 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   在 System.Net.ContextAwareResult.Complete(IntPtr userToken)
   在 System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
   在 System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
   在 System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)