newtonsoft json problem

[salmasi]

when use
.AddNewtonsoftJson(options => { options.SerializerSettings.NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore; });
instead of :
.AddJsonOptions(opts => { opts.JsonSerializerOptions.IgnoreNullValues = true; })
get below error in console
Uncaught (in promise) Error: Unsupported datafeed configuration. Must either support search, or support group request

is any way to use newtonsoft json?

[salmasi]

add
[JsonProperty("propertyname")]
to all models in core and resolve problem and support newtonsoftjson