Getting Error in deserializing body of reply message for operation 'GetVersion'

I am trying to create the sample Data scope application mentioned in chapter 2 of the book below

https://customers.reuters.com/a/support/paz/pazDocs.aspx?did=481357

I am getting an error as below:

Unhandled Exception: System.ServiceModel.CommunicationException: Error in deserializing body of reply message for operation 'GetVersion'. ---> System.InvalidOperationException:
There is an error in XML document (1, 503).
at System.Xml.XmlExceptionHelper.ThrowXmlException(XmlDictionaryReader reader, String res, String arg1, String arg2, String arg3)
at System.Xml.XmlExceptionHelper.ThrowMaxNameTableCharCountExceeded(XmlDictionaryReader reader, Int32 maxNameTableCharCount)
at System.Xml.XmlBaseReader.QuotaNameTable.Add(Int32 charCount)
at System.Xml.XmlBaseReader.QuotaNameTable.Add(String value)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderExtractionService.InitIDs()
at System.Xml.Serialization.XmlSerializationReader.Init(XmlReader r, XmlDeserializationEvents events, String encodingStyle, TempAssembly tempAssembly)
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
--- End of inner exception stack trace ---
at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
at System.ServiceModel.Dispatcher.XmlSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, XmlSerializer serializer, MessagePartDescription returnPart, MessagePartDescription
--- End of inner exception stack trace ---

can you please help

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dss

dss-rest-api

datascope-select

dss-soap-api

Accepted answers

Christiaan Meihsl

@sree.harsha,

Is your code the exact same code as the sample, or were any changes made ?

Error ThrowMaxNameTableCharCountExceeded seems to indicate that a string was too long.

A few pointers which might help you identify what is wrong:

Are you using a valid DSS username and password ?
Was the WSDL added to the project ? Was it updated ?
Try commenting out sections of the code to find out which one generates the error. Is it in section Get API version, Validate an Instrument, or Re-assign credentials variable ?

As a side note: if you are at the start of a new development project, you should use the REST API. Both the SOAP and REST APIs are currently supported, but SOAP will be phased out. REST is the way to go.

All comments

Christiaan Meihsl

@sree.harsha,

Is your code the exact same code as the sample, or were any changes made ?

Error ThrowMaxNameTableCharCountExceeded seems to indicate that a string was too long.

A few pointers which might help you identify what is wrong:

Are you using a valid DSS username and password ?
Was the WSDL added to the project ? Was it updated ?
Try commenting out sections of the code to find out which one generates the error. Is it in section Get API version, Validate an Instrument, or Re-assign credentials variable ?

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