System.InvalidOperationException No converter configured for type System.String at Amazon.DynamoDBv2.ConverterCache.GetConverter

[hugosoli]

I am developing an app with UNITY 2017.2.3f1 and the aws-sdk-unity_3.3.396.2
S3 works fine which means that many elements are OK. The code works fine for MAC and Android
However when I try to post an element on DynamoDB with the following code

var rec = new Document();
rec["id"] = 1;//recName;
rec["Lat"] = 2;//Input.location.lastData.latitude;
rec["Long"] = 3;//Input.location.lastData.longitude;
rec["Time"] = 4;//recTime;

			table.PutItemAsync(rec, (r) => {
				Debug.Log("\n rec has been poted " + r.Exception + " *222444*****************");
				textnotification.text = "Archivo subido con éxito";
				Invoke("cleanText", 3);
				butSender.interactable = false;
				butPlayer.interactable = true;
				butRecorder.interactable = true;
				hasnotbeensent = false;
			});

it complains with the following error.

System.InvalidOperationException: No converter configured for type System.String
at Amazon.DynamoDBv2.ConverterCache.GetConverter (System.Type type) [0x00000] in :0
at Amazon.DynamoDBv2.DynamoDBEntryConversion.ConvertToEntry (System.Type inputType, System.Object value) [0x00000] in :0
at Amazon.DynamoDBv2.DocumentModel.UnconvertedDynamoDBEntry.ConvertToAttributeValue (Amazon.DynamoDBv2.DocumentModel.AttributeConversionConfig conversionConfig) [0x00000] in :0
at Amazon.DynamoDBv2.DocumentModel.Document.ToAttributeMap (Amazon.DynamoDBv2.DynamoDBEntryConversion conversion, IEnumerable1 epochAttributes) [0x00000] in <filename unknown>:0 at Amazon.DynamoDBv2.DocumentModel.Table.PutItemHelper (Amazon.DynamoDBv2.DocumentModel.Document doc, Amazon.DynamoDBv2.DocumentModel.PutItemOperationConfig config) [0x00000] in <filename unknown>:0 at Amazon.DynamoDBv2.DynamoDBAsyncExecutor+<>c__DisplayClass1_01[T].b__0 (System.Object state) [0x00000] in :0 ******* ***********

I think it is a Bug but I am not sure.

[hugosoli]

Please, is there any update about this issue?

[hugosoli]

error of mine.
I have to add a new line for the dbservice
assembly fullname="AWSSDK.DynamoDBv2" preserve="all"
to the link.xml file