Warning The string 'blah' with parameter delimiters is not a parameter.

Hi All,

Loadrunner 12.02 - Web/HTML

My Replay log has this warning:

Warning	219	Action.c(219): Warning: The string '"clazz":"com.gtnet.common.client.grasp.CLIENT_EVENT_Transportable","eventType":1,"objectID":2,"param1":"%7B%22____oid%22%3A33427%2C%20%22____type%22%3A%22ZZZCommonS.API.Objects.DatePicker%22%2C%20%22maxDate%22%3A%7B%22____type%22%3A%22Date%22%2C%20%22value%22%3A1446728400000%7D%2C%20%22minDate%22%3A%7B%22____type%22%3A%22Date%22%2C%20%22value%22%3A1443232390729%7D%2C%20%22selectedDateString%22%3Anull%7D","param2":"","parentID":9,"subObjectID":-1,"transportCode":128' with parameter delimiters is not a parameter.	Action.c	

The response body is as follows for the step:

--rn9012Content-type: text/plain

{"clazz":"com.gtnet.common.client.json.JSONArray","code":167,"lastPacket":false,"transportables":[{"clazz":"com.gtnet.common.client.grasp.FORM_CUSTOM_COMPONENT_VALUE_Transportable","transportCode":167,"formID":9,"objectID":2,"value":"{ \"____oid\" : 52879, \"____type\" : \"ZZZCommonS.API.Objects.DatePicker\", \"maxDate\" : { \"____type\" : \"Date\", \"value\" : 1446728400000 }, \"minDate\" : { \"____type\" : \"Date\", \"value\" : 1443232390729 }, \"selectedDateString\" : null }","properties":"{\"showAnim\":\"fadeIn\",\"buttonImageOnly\":\"false\",\"maxLength\":\"10\",\"maxDate\":\"\",\"dateFormatHint\":\"dd\/mm\/yyyy\",\"buttonImage\":\"\/webclient\/customcomponents\/extensions\/ZZZComponents\/Datepicker\/css\/ui-lightness\/images\/calendar.gif\",\"minDate\":\"+0\",\"showOn\":\"both\",\"dateFormat\":\"dd\/mm\/yy\",\"buttonText\":\"<i class='icon calendar'><\/i>\"}","windowID":"primaryWindow"}]}
[JSONArray]--rn9012Content-type: text/plain

{"clazz":"com.gtnet.common.client.json.JSONArray","code":71,"lastPacket":true,"pageToken":1957415445,"transportables":[{"clazz":"com.gtnet.common.client.grasp.STR_RESPONSE_Transportable","transportCode":71,"successCode":1,"messageType":128,"commandID":1,"supplemental":"","supplementalInt":0,"windowID":null}]}
[JSONArray]--rn9012--

Notice how the response body is encapsulated by curly  brackets {} - Is this why I see this warning, does the engine see the whole string as a parameter or somethng?

If my above assumption is correct, then how is it possible to clear this sort of warning? 

Thanks in advance

Jim