Azure Search .Net SDK 使用 SerializationBinder 引发 InvalidOperationException

Question

我正在 .NET Core 上使用 Azure Search .NET SDK（具体来说，从 Github 克隆示例 - https://github.com/Azure-Samples/search-dotnet-getting-started）

当输入任何带有索引的操作（创建、删除...）时，它会抛出来自 Newtonsoft.Json 的 SerializationBinder 异常，如下所示

System.InvalidOperationException: Cannot get SerializationBinder because an ISerializationBinder was previously set.    at Newtonsoft.Json.JsonSerializer.get_Binder()    
--- End of inner exception stack trace ---    
    at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)    
    at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)    
    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)   
    at Microsoft.Rest.Azure.JsonSerializerExtensions.WithoutConverter(JsonSerializer serializer, JsonConverter converterToExclude)    
    at Microsoft.Rest.Azure.CloudErrorJsonConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer)    
    at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, Object existingValue)   
    at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)    
    at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)    
    at Microsoft.Rest.Serialization.SafeJsonConvert.DeserializeObject[T](String json, JsonSerializerSettings settings)    at Microsoft.Azure.Search.IndexesOperations.<GetWithHttpMessagesAsync>d__12.MoveNext()
    --- End of stack trace from previous location where exception was thrown ---    
        at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at Microsoft.Azure.Search.ExistsHelper.<ExistsFromGetResponse>d__0`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at Microsoft.Azure.Search.IndexesOperationsExtensions.<ExistsAsync>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown --

我认为这是 SDK 本身的问题，因为我克隆了公共 github 存储库。对吗？

Answer 1

这是由许多 Azure SDK 与 JSON.NET 版本 10 的已知兼容性问题引起的。详细信息为 here 和 here。

这已在 Microsoft.Azure.Search 版本 3.0.5 和 4.0.2-preview 中得到修复。

Answer 2

当我尝试执行DeleteHotelsIndexIfExists函数如果索引不存在时，我也可以重现您提到的问题。 创建索引、上传文档等其他操作在我这边工作正常。

经过一番调查，我发现 Microsoft.Extensions.Configuration.Json 是预览版。

请尝试更新到最新的稳定 1.1.2 版本。然后它在我这边正常工作。