JSON error when trying to backtest wit Visual Studio by Kevin Hughes

Kevin Hughes INVESTOR

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I've been trying to get backtesting locally working for the past few days, and I keep running into this error - I'm stumped. The backtest-desktop application will open up and then crash out, with this in the console.Any idea what this means and how I can resolve it?

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Kevin Hughes

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Alexandre Catarino

I cannot read the small print.
Did you follow the readme? What is the OS? Are you running C# version of BasicTemplateAlgorithm?

Pawel Kowalke

119 ,

Hi, I am getting this error when trying to run brand new copy of Lean from zip + Instructions on Using Desktop Interface. The program appears to run through all the data and then crashes on something within the windows form (backtesting works fine, backtesting-desktop does not). The output with exeption message pasted from the console below. Please, help, it worked fine with older version of Lean source. Greetings, Pawel 20180908 00:38:28.908 Trace:: Config.Get(): Configuration key not found. Key: plugin-directory - Using default value:
20180908 00:38:28.919 Trace:: Config.Get(): Configuration key not found. Key: composer-dll-directory - Using default value: C:\Users\user\source\repos\QuantConnect\Lean - Local\Launcher\bin\Debug\
20180908 00:38:29.761 Trace:: Python for .NET Assembly: Python.Runtime, Version=2.4.0.0, Culture=neutral, PublicKeyToken=null
20180908 00:38:30.193 Trace:: Python for .NET Assembly: nPython, Version=2.4.0.0, Culture=neutral, PublicKeyToken=null
20180908 00:38:30.308 Trace:: Config.GetValue(): debug-mode - Using default value: False
20180908 00:38:33 Trace:: Config.Get(): Configuration key not found. Key: data-directory - Using default value: ../../../Data/
20180908 00:38:33 Trace:: Config.Get(): Configuration key not found. Key: version-id - Using default value:
20180908 00:38:33 Trace:: Config.Get(): Configuration key not found. Key: cache-location - Using default value: ../../../Data/
20180908 00:38:33 Trace:: Engine.Main(): LEAN ALGORITHMIC TRADING ENGINE v2.4.0.0 Mode: DEBUG (64bit)
20180908 00:38:33 Trace:: Engine.Main(): Started 00:38
20180908 00:38:36 Trace:: Engine.Main(): Memory 60Mb-App 4Mb-Used 2064Mb-Total
20180908 00:38:36 Trace:: Config.GetValue(): job-project-id - Using default value: 0
20180908 00:38:36 Trace:: Config.Get(): Configuration key not found. Key: algorithm-path-python - Using default value: ../../../Algorithm.Python/
20180908 00:38:36 Trace:: Config.Get(): Configuration key not found. Key: lean-manager-type - Using default value: LocalLeanManager
20180908 00:38:36 Trace:: Config.Get(): Configuration key not found. Key: cloud-api-url - Using default value: https://www.quantconnect.com/api/v2/
20180908 00:38:36 Trace:: JobQueue.NextJob(): Selected QuantConnect.Algorithm.CSharp.dll
20180908 00:38:36 Trace:: Config.Get(): Configuration key not found. Key: history-provider - Using default value: SubscriptionDataReaderHistoryProvider
20180908 00:38:37 Trace:: Config.GetValue(): ignore-version-checks - Using default value: False
20180908 00:38:37 Trace:: Config.GetValue(): algorithm-manager-time-loop-maximum - Using default value: 20
20180908 00:38:37.477 Trace:: Config.Get(): Configuration key not found. Key: data-directory - Using default value: ../../../Data/
20180908 00:38:37.485 Trace:: Config.Get(): Configuration key not found. Key: version-id - Using default value:
20180908 00:38:37.485 Trace:: Config.Get(): Configuration key not found. Key: cache-location - Using default value: ../../../Data/
20180908 00:38:38 Trace:: Loader.TryCreateILAlgorithm(): Loading only the algorithm assembly
20180908 00:38:38 Trace:: Loader.TryCreateILAlgorithm(): Loaded BasicTemplateForexAlgorithm
20180908 00:38:39 Trace:: Config.Get(): Configuration key not found. Key: security-data-feeds - Using default value:
20180908 00:38:41 Trace:: BacktestingResultHandler(): Sample Period Set: 04,00
20180908 00:38:41 Trace:: Time.TradeableDates(): Security Count: 2
20180908 00:38:41 Trace:: Config.GetValue(): forward-console-messages - Using default value: True
20180908 00:38:41 Trace:: JOB HANDLERS:
20180908 00:38:41 Trace::          DataFeed:     QuantConnect.Lean.Engine.DataFeeds.FileSystemDataFeed
20180908 00:38:41 Trace::          Setup:        QuantConnect.Lean.Engine.Setup.ConsoleSetupHandler
20180908 00:38:41 Trace::          RealTime:     QuantConnect.Lean.Engine.RealTime.BacktestingRealTimeHandler
20180908 00:38:41 Trace::          Results:      QuantConnect.Lean.Engine.Results.BacktestingResultHandler
20180908 00:38:41 Trace::          Transactions: QuantConnect.Lean.Engine.TransactionHandlers.BacktestingTransactionHandler
20180908 00:38:41 Trace::          Alpha:        QuantConnect.Lean.Engine.Alphas.DefaultAlphaHandler
20180908 00:38:41 Trace::          History Provider:     QuantConnect.Lean.Engine.HistoricalData.SubscriptionDataReaderHistoryProvider
20180908 00:38:41 Trace:: Launching analysis for BasicTemplateForexAlgorithm with LEAN Engine v2.4.0.0
20180908 00:38:41 Trace:: AlgorithmManager.Run(): Begin DataStream - Start: 07.05.2014 00:00:00 Stop: 15.05.2014 23:59:59
20180908 00:38:41 Trace:: FileSystemDataFeed.GetEnumerator(): Begin: 07.05.2014 04:00:00 UTC
20180908 00:38:41 Trace:: EURUSD: 06.05.2014 23:59:56 > 1,392525
20180908 00:38:41 Trace:: EURUSD: 06.05.2014 23:59:57 > 1,39250
20180908 00:38:41 Trace:: EURUSD: 06.05.2014 23:59:58 > 1,39250
20180908 00:38:41 Trace:: EURUSD: 06.05.2014 23:59:59 > 1,39250
20180908 00:38:41 Trace:: EURUSD: 07.05.2014 00:00:00 > 1,39250
20180908 00:38:41 Trace:: EURUSD: 1,39 z?, NZDUSD: 0,87 z?
20180908 00:38:42 Trace:: StreamingApi.Transmit(): Packet too long: QuantConnect.Packets.BacktestResultPacketWyjątek nieobsłużony: 20180908 00:38:42 Trace:: FileSystemDataFeed.Run(): Data Feed Completed at 16.05.2014 04:00:00 UTC
System.NotImplementedException: Metoda lub operacja nie jest zaimplementowana.
   w QuantConnect.Util.SeriesJsonConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) w C:\Users\user\source\repos\QuantConnect\Lean - Local\Common\Util\SeriesJsonConverter.cs:wiersz 71
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateDictionary(IDictionary dictionary, JsonReader reader, JsonDictionaryContract contract, JsonProperty containerProperty, String id)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateDictionary(IDictionary dictionary, JsonReader reader, JsonDictionaryContract contract, JsonProperty containerProperty, String id)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue(JsonProperty property, JsonConverter propertyConverter, JsonContainerContract containerContract, JsonProperty containerProperty, JsonReader reader, Object target)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   w Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   w Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   w Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   w Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   w QuantConnect.Views.DesktopClient.Run(String port, IDesktopMessageHandler handler) w C:\Users\user\source\repos\QuantConnect\Lean - Local\UserInterface\DesktopClient.cs:wiersz 57
   w QuantConnect.Views.Program.<>c__DisplayClass0_0.<Main>b__0() w C:\Users\user\source\repos\QuantConnect\Lean - Local\UserInterface\Program.cs:wiersz 25
   w System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   w System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   w System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   w System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   w System.Threading.ThreadHelper.ThreadStart()
20180908 00:38:42 Trace:: AlgorithmManager.Run(): Firing On End Of Algorithm...
20180908 00:38:42 Trace:: Engine.Run(): Exiting Algorithm Manager
20180908 00:38:42 Trace:: StreamingApi.Transmit(): Packet too long: QuantConnect.Packets.BacktestResultPacket
20180908 00:38:43 Trace:: BacktestingResultHandler.SendAnalysisResult(): Processed final packet
20180908 00:38:43 Trace:: FileSystemDataFeed.Exit(): Exit triggered.
20180908 00:38:43 Trace:: BrokerageTransactionHandler.Run(): Ending Thread...
20180908 00:38:43 Trace:: FileSystemDataFeed.Run(): Ending Thread...
20180908 00:38:43 Trace:: BacktestingResultHandler.Run(): Ending Thread...
20180908 00:38:43 Trace:: Waiting for threads to exit...
20180908 00:38:53 Trace:: Engine.Run(): Disconnecting from brokerage...
20180908 00:38:53 Trace:: Engine.Run(): Disposing of setup handler...
20180908 00:38:53 Trace:: Engine.Main(): Analysis Completed and Results Posted.
20180908 00:38:53 Trace:: FileSystemDataFeed.Exit(): Exit triggered.
Engine.Main(): Analysis Complete. Press any key to continue.
20180908 00:40:52 Error:: StreamingApi.Client.ExecuteAsyncPost(): Error deserializing JSON content.
20180908 00:40:52 Error:: StreamingApi.Client.ExecuteAsyncPost(): Error deserializing JSON content.

Alexandre Catarino

Hi Pawel Kowalke, we have discontinued the current local IDE.
We are moving to a solution based on Electron.

Kevin Hughes INVESTOR

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