Failed Jobs

Enqueued 0 / 1 Scheduled 0 Processing 2 Succeeded 141,233 Failed 3,518 Deleted 84 Awaiting 0

Failed jobs do not become expired to allow you to re-queue them without any time pressure. You should re-queue or delete them manually, or apply AutomaticRetry(OnAttemptsExceeded = AttemptsExceededAction.Delete) attribute to delete them automatically.

Id	Job	Failed
#141316	ProductionForecastService.ForecastGeneration An exception occurred during performance of the job. Fewer details...	01/18/2026 23:05:47
#141316	System.InvalidOperationException Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at EnergyDataHub.Data.Services.XProductionForecastStorageService.SaveProductionForecast(List`1 forecasts, Location location, ForecastLocationSettings forecastSettings) at EnergyDataHub.Data.Services.ProductionForecastService.Forecast(Location location, IPredictionInput weatherForecastDto, ForecastLocationSettings forecastSettings, IProductionForecastStorageService storageService) at EnergyDataHub.Data.Services.ProductionForecastService.ForecastGeneration(Location location, XWeatherResponse weatherForecastDto, ForecastLocationSettings forecastSettings) at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141315	ProductionForecastService.ForecastGeneration An exception occurred during performance of the job. More details...	01/18/2026 23:05:40
#141315	System.InvalidOperationException Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at EnergyDataHub.Data.Services.XProductionForecastStorageService.SaveProductionForecast(List`1 forecasts, Location location, ForecastLocationSettings forecastSettings) at EnergyDataHub.Data.Services.ProductionForecastService.Forecast(Location location, IPredictionInput weatherForecastDto, ForecastLocationSettings forecastSettings, IProductionForecastStorageService storageService) at EnergyDataHub.Data.Services.ProductionForecastService.ForecastGeneration(Location location, XWeatherResponse weatherForecastDto, ForecastLocationSettings forecastSettings) at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141301	IXWeatherSyncJob.Run An exception occurred during performance of the job. More details...	01/18/2026 21:37:13
#141301	Newtonsoft.Json.JsonSerializationException Error converting value {null} to type 'System.Double'. Path 'response[0].periods[0].maxFeelslikeC', line 1, position 441. Newtonsoft.Json.JsonSerializationException: Error converting value {null} to type 'System.Double'. Path 'response[0].periods[0].maxFeelslikeC', line 1, position 441. ---> System.InvalidCastException: Null object cannot be converted to a value type. at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType) --- End of inner exception stack trace --- at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent) at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType) at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings) at EnergyDataHub.Data.Services.XWeatherClient.FetchData(NameValueCollection queryParams, String path) at EnergyDataHub.Data.Services.XWeatherClient.GetWeatherForcasts(Double latitude, Double longitude, Nullable`1 start, XWeatherInterval inteval, Int32 periodCount) at EnergyDataHub.Data.Hangfire.Jobs.XWeatherSyncJob.SyncLocationWeatherData(Location location, DataSource dataSource, DateTime taskStartHour) at EnergyDataHub.Data.Hangfire.Jobs.XWeatherSyncJob.Run() at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141298	IVisualCrossingSyncJob.Run An exception occurred during performance of the job. More details...	01/18/2026 21:32:31
#141298	System.Net.Http.HttpRequestException Response status code does not indicate success: 401. System.Net.Http.HttpRequestException: Response status code does not indicate success: 401. at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode() at System.Net.Http.HttpClient.GetStringAsyncCore(HttpRequestMessage request, CancellationToken cancellationToken) at EnergyDataHub.Data.Services.VisualCrossingClient.FetchWeatherData(String path, VisualCrossingRequestOptions options) at EnergyDataHub.Data.Services.VisualCrossingClient.GetWeatherData(Double latitude, Double longitude, DateOnly start, DateOnly end, VisualCrossingRequestOptions options) at EnergyDataHub.Data.Hangfire.Jobs.VisualCrossingSyncJob.SyncLocationWeatherData(Location location, DataSource dataSource, DateTime taskStartHour) at EnergyDataHub.Data.Hangfire.Jobs.VisualCrossingSyncJob.Run() at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141275	IXWeatherSyncJob.Run An exception occurred during performance of the job. More details...	01/18/2026 20:43:35
#141275	Newtonsoft.Json.JsonSerializationException Error converting value {null} to type 'System.Double'. Path 'response[0].periods[1].maxFeelslikeC', line 1, position 2565. Newtonsoft.Json.JsonSerializationException: Error converting value {null} to type 'System.Double'. Path 'response[0].periods[1].maxFeelslikeC', line 1, position 2565. ---> System.InvalidCastException: Null object cannot be converted to a value type. at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType) --- End of inner exception stack trace --- at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent) at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType) at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings) at EnergyDataHub.Data.Services.XWeatherClient.FetchData(NameValueCollection queryParams, String path) at EnergyDataHub.Data.Services.XWeatherClient.GetWeatherForcasts(Double latitude, Double longitude, Nullable`1 start, XWeatherInterval inteval, Int32 periodCount) at EnergyDataHub.Data.Hangfire.Jobs.XWeatherSyncJob.SyncLocationWeatherData(Location location, DataSource dataSource, DateTime taskStartHour) at EnergyDataHub.Data.Hangfire.Jobs.XWeatherSyncJob.Run() at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141264	ProductionForecastService.ForecastGeneration An exception occurred during performance of the job. More details...	01/18/2026 20:39:26
#141264	System.InvalidOperationException Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at EnergyDataHub.Data.Services.XProductionForecastStorageService.SaveProductionForecast(List`1 forecasts, Location location, ForecastLocationSettings forecastSettings) at EnergyDataHub.Data.Services.ProductionForecastService.Forecast(Location location, IPredictionInput weatherForecastDto, ForecastLocationSettings forecastSettings, IProductionForecastStorageService storageService) at EnergyDataHub.Data.Services.ProductionForecastService.ForecastGeneration(Location location, XWeatherResponse weatherForecastDto, ForecastLocationSettings forecastSettings) at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141263	ProductionForecastService.ForecastGeneration An exception occurred during performance of the job. More details...	01/18/2026 20:39:19
#141263	System.InvalidOperationException Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at EnergyDataHub.Data.Services.XProductionForecastStorageService.SaveProductionForecast(List`1 forecasts, Location location, ForecastLocationSettings forecastSettings) at EnergyDataHub.Data.Services.ProductionForecastService.Forecast(Location location, IPredictionInput weatherForecastDto, ForecastLocationSettings forecastSettings, IProductionForecastStorageService storageService) at EnergyDataHub.Data.Services.ProductionForecastService.ForecastGeneration(Location location, XWeatherResponse weatherForecastDto, ForecastLocationSettings forecastSettings) at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141262	ProductionForecastService.ForecastGeneration An exception occurred during performance of the job. More details...	01/18/2026 20:39:12
#141262	System.InvalidOperationException Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at EnergyDataHub.Data.Services.XProductionForecastStorageService.SaveProductionForecast(List`1 forecasts, Location location, ForecastLocationSettings forecastSettings) at EnergyDataHub.Data.Services.ProductionForecastService.Forecast(Location location, IPredictionInput weatherForecastDto, ForecastLocationSettings forecastSettings, IProductionForecastStorageService storageService) at EnergyDataHub.Data.Services.ProductionForecastService.ForecastGeneration(Location location, XWeatherResponse weatherForecastDto, ForecastLocationSettings forecastSettings) at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141248	IXWeatherSyncJob.Run An exception occurred during performance of the job. More details...	01/18/2026 18:44:21
#141248	Newtonsoft.Json.JsonSerializationException Error converting value {null} to type 'System.Double'. Path 'response[0].periods[3].maxFeelslikeC', line 1, position 6786. Newtonsoft.Json.JsonSerializationException: Error converting value {null} to type 'System.Double'. Path 'response[0].periods[3].maxFeelslikeC', line 1, position 6786. ---> System.InvalidCastException: Null object cannot be converted to a value type. at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType) --- End of inner exception stack trace --- at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent) at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType) at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings) at EnergyDataHub.Data.Services.XWeatherClient.FetchData(NameValueCollection queryParams, String path) at EnergyDataHub.Data.Services.XWeatherClient.GetWeatherForcasts(Double latitude, Double longitude, Nullable`1 start, XWeatherInterval inteval, Int32 periodCount) at EnergyDataHub.Data.Hangfire.Jobs.XWeatherSyncJob.SyncLocationWeatherData(Location location, DataSource dataSource, DateTime taskStartHour) at EnergyDataHub.Data.Hangfire.Jobs.XWeatherSyncJob.Run() at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
#141239	ProductionForecastService.ForecastGeneration An exception occurred during performance of the job. More details...	01/18/2026 18:39:48
#141239	System.InvalidOperationException Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at EnergyDataHub.Data.Services.XProductionForecastStorageService.SaveProductionForecast(List`1 forecasts, Location location, ForecastLocationSettings forecastSettings) at EnergyDataHub.Data.Services.ProductionForecastService.Forecast(Location location, IPredictionInput weatherForecastDto, ForecastLocationSettings forecastSettings, IProductionForecastStorageService storageService) at EnergyDataHub.Data.Services.ProductionForecastService.ForecastGeneration(Location location, XWeatherResponse weatherForecastDto, ForecastLocationSettings forecastSettings) at InvokeStub_TaskAwaiter.GetResult(Object, Object, IntPtr*) at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

System.InvalidOperationException

System.InvalidOperationException

Newtonsoft.Json.JsonSerializationException

System.Net.Http.HttpRequestException

Newtonsoft.Json.JsonSerializationException

System.InvalidOperationException

System.InvalidOperationException

System.InvalidOperationException

Newtonsoft.Json.JsonSerializationException

System.InvalidOperationException