Platform

Bot Builder v4.0 (dotnet core)

Author or host

web api (Bot Framework)

Version of SDK

1.1

Issue

When deserialize the DialogState which contains the AdaptiveCard, it fails with error "Error reading JArray from JsonReader at

var array = JArray.Load(reader);.

Error: Current JsonReader item is not an array: StartObject. Path 'DialogState.DialogStack.$values[0].State.dialogs.DialogStack.$values[0].State.options.Prompt.attachments.$values[0].content.action"

This caused by [JsonConverter(typeof(IgnoreEmptyItemsConverter<AdaptiveAction>))] attribute on AdaptiveCard which will be called while deserialization but it’s not actually an array yet, as $value holds an array not action (nor body)

"actions": {
    "$type": "System.Collections.Generic.List`1[[AdaptiveCards.ActionBase, AdaptiveCards]], System.Private.CoreLib",
    "$values": [
    {
        "$type": "AdaptiveCards.SubmitAction, AdaptiveCards",
        "type": "Action.Submit",
        "data": "Test",
        "title": "Test"
    }
    ]
}

We should try/catch JArray.Load