# Chapter 4.2.7 - Fault

Source: https://developer.avalara.com/products/communications/integration-guides/dev-guide_geo_soap/reference/fault/

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### Fault

The `Fault` object contains the error description as applicable:

Key

Value

`faultcode`

`[string]` Fault Code

`faultstring`

`[string]` Error Message

`detail`

`[ArrayOfstring]` Detailed Error Message  

Includes the error message, stack trace, and type of error generated (if applicable)

### Example

```xml
<Fault> <faultcode xmlns:a="http://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher">a:DeserializationFailed</faultcode> <faultstring xml:lang="en-US">The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:latitude. The InnerException message was 'There was an error deserializing the object of type System.Double. The value '' cannot be parsed as the type 'double'.'.  Please see InnerException for more details.</faultstring> <detail> <ExceptionDetail xmlns="http://schemas.datacontract.org/2004/07/System.ServiceModel" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"> <HelpLink i:nil="true"/> <InnerException> <HelpLink i:nil="true"/> <InnerException> <HelpLink i:nil="true"/> <InnerException> <HelpLink i:nil="true"/> <InnerException i:nil="true"/> <Message>Input string was not in a correct format.</Message> <StackTrace>at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt)              at System.Xml.XmlConvert.ToDouble(String s)              at System.Xml.XmlConverter.ToDouble(String value)</StackTrace> <Type>System.FormatException</Type> </InnerException> <Message>The value '' cannot be parsed as the type 'double'.</Message> <StackTrace>at System.Xml.XmlConverter.ToDouble(String value)          at System.Xml.XmlBaseReader.ReadContentAsDouble()          at System.Xml.XmlDictionaryReader.ReadElementContentAsDouble()          at System.Runtime.Serialization.XmlReaderDelegator.ReadElementContentAsDouble()          at System.Runtime.Serialization.DoubleDataContract.ReadXmlValue(XmlReaderDelegator reader, XmlObjectSerializerReadContext context)          at System.Runtime.Serialization.DataContractSerializer.InternalReadObject(XmlReaderDelegator xmlReader, Boolean verifyObjectName, DataContractResolver dataContractResolver)          at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)</StackTrace> <Type>System.Xml.XmlException</Type> </InnerException> <Message>There was an error deserializing the object of type System.Double. The value '' cannot be parsed as the type 'double'.</Message> <StackTrace>at System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(XmlReaderDelegator reader, Boolean verifyObjectName, DataContractResolver dataContractResolver)        at System.Runtime.Serialization.DataContractSerializer.ReadObject(XmlDictionaryReader reader, Boolean verifyObjectName)        at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.PartInfo.ReadObject(XmlDictionaryReader reader, XmlObjectSerializer serializer)        at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part, Boolean isRequest)</StackTrace> <Type>System.Runtime.Serialization.SerializationException</Type> </InnerException> <Message>The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:latitude. The InnerException message was 'There was an error deserializing the object of type System.Double. The value '' cannot be parsed as the type 'double'.'.  Please see InnerException for more details.</Message> <StackTrace><![CDATA[at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameterPart(XmlDictionaryReader reader, PartInfo part, Boolean isRequest)      at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameter(XmlDictionaryReader reader, PartInfo part, Boolean isRequest)      at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeParameters(XmlDictionaryReader reader, PartInfo[] parts, Object[] parameters, Boolean isRequest)      at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, String action, MessageDescription messageDescription, Object[] parameters, Boolean isRequest)      at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest)      at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeRequest(Message message, Object[] parameters)      at System.ServiceModel.Dispatcher.DispatchOperationRuntime.DeserializeInputs(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)      at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)]]></StackTrace> <Type>System.ServiceModel.Dispatcher.NetDispatcherFaultException</Type> </ExceptionDetail> </detail></Fault>
```

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