Web Service System.ArgumentException

[Jo]

Hello,

We have a web service "GetByPartsID" and it runs quite smoothly most of the
time but the web service sometimes throws an argumentException (see below).
What does this mean? When this happens, we have to restart our application
pool in IIS to fix the problem. So it is quite annoying. Any ideas? Thanks
a lot.

More than one message named 'GetByPartsIDHttpPostIn' was specified. Each
message must have a unique name.

Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information about
the error and where it originated in the code.

Exception Details: System.ArgumentException: More than one message named
'GetByPartsIDHttpPostIn' was specified. Each message must have a unique name.

Source Error:
An unhandled exception was generated during the execution of the current web
request. Information regarding the origin and location of the exception can
be identified using the exception stack trace below.

Stack Trace:

[ArgumentException: More than one message named 'GetByPartsIDHttpPostIn' was
specified. Each message must have a unique name.]


System.Web.Services.Description.ServiceDescriptionBaseCollection.AddValue(Object value) +169

System.Web.Services.Description.ServiceDescriptionBaseCollection.OnInsertComplete(Int32 index, Object value) +9

System.Collections.CollectionBase.System.Collections.IList.Add(Object
value) +226


System.Web.Services.Description.ProtocolReflector.ReflectBinding(ReflectedBinding reflectedBinding) +2055

System.Web.Services.Description.ProtocolReflector.Reflect() +509


System.Web.Services.Description.ServiceDescriptionReflector.ReflectInternal(ProtocolReflector[] reflectors) +495

System.Web.Services.Description.ServiceDescriptionReflector.Reflect(Type
type, String url) +112

System.Web.Services.Protocols.DocumentationServerType..ctor(Type type,
String uri) +155

System.Web.Services.Protocols.DocumentationServerProtocol.Initialize() +262

System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing) +106



[InvalidOperationException: Unable to handle request.]

System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing) +205


System.Web.Services.Protocols.WebServiceHandlerFactory.CoreGetHandler(Type
type, HttpContext context, HttpRequest request, HttpResponse response) +82



[InvalidOperationException: Failed to handle request.]


System.Web.Services.Protocols.WebServiceHandlerFactory.CoreGetHandler(Type
type, HttpContext context, HttpRequest request, HttpResponse response) +154


System.Web.Services.Protocols.WebServiceHandlerFactory.GetHandler(HttpContext
context, String verb, String url, String filePath) +94

System.Web.HttpApplication.MapHttpHandler(HttpContext context, String
requestType, String path, String pathTranslated, Boolean useAppConfig) +699


System.Web.MapHandlerExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute() +95

System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
completedSynchronously) +173