The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://adobe.com/idp/services:HtmlToPDF2Response. The InnerException message was 'Error in line 1 position 364. Element 'http://adobe.com/idp/services:Result' contains data from a type that maps to the name 'http://adobe.com/idp/services:Serializable'. The deserializer has no knowledge of any type that maps to this name. Consider using a DataContractResolver if you are using DataContractSerializer or add the type corresponding to 'Serializable' to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding it to the list of known types passed to the serializer.'.
Any guidance on what I'm doing wrong? This same code is working on a LiveCycle ES4 v11 instance we have with no problem.
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These are soap service endpoints, I'm not sure what you mean? Is there a code example you can point me to? The nuts and bolts my code is nearly the same as this example I'm just calling a different endpoint.