Trying to use Queue as a parameter in a web-service I get this err

[Willy S]

Trying to use Queue as a parameter in a web-service I get this error:

You must implement a default accessor on System.Collections.Queue because it
inherits from ICollection.

Is it somehow possible to use Queue as parameter(s) in web-services?

[InvalidOperationException: You must implement a default accessor on
System.Collections.Queue because it inherits from ICollection.]
System.Xml.Serialization.TypeScope.GetDefaultIndexer(Type type, String
memberInfo) +834165
System.Xml.Serialization.TypeScope.ImportTypeDesc(Type type, MemberInfo
memberInfo, Boolean directReference) +860
System.Xml.Serialization.TypeScope.GetTypeDesc(Type type, MemberInfo
source, Boolean directReference, Boolean throwOnError) +150

System.Xml.Serialization.XmlReflectionImporter.ImportMemberMapping(XmlReflectionMember
xmlReflectionMember, String ns, XmlReflectionMember[] xmlReflectionMembers,
Boolean rpc, Boolean openModel) +78

System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(XmlReflectionMember[]
xmlReflectionMembers, String ns, Boolean hasWrapperElement, Boolean rpc,
Boolean openModel) +278

[InvalidOperationException: There was an error reflecting 'qol'.]

System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(XmlReflectionMember[]
xmlReflectionMembers, String ns, Boolean hasWrapperElement, Boolean rpc,
Boolean openModel) +877

System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(String
elementName, String ns, XmlReflectionMember[] members, Boolean
hasWrapperElement, Boolean rpc, Boolean openModel, XmlMappingAccess access)
+111

System.Web.Services.Protocols.SoapReflector.ImportMembersMapping(XmlReflectionImporter
xmlImporter, SoapReflectionImporter soapImporter, Boolean
serviceDefaultIsEncoded, Boolean rpc, SoapBindingUse use, SoapParameterStyle
paramStyle, String elementName, String elementNamespace, Boolean nsIsDefault,
XmlReflectionMember[] members, Boolean validate, Boolean openModel, String
key, Boolean writeAccess) +203

System.Web.Services.Protocols.SoapReflector.ReflectMethod(LogicalMethodInfo
methodInfo, Boolean client, XmlReflectionImporter xmlImporter,
SoapReflectionImporter soapImporter, String defaultNs) +2460

[InvalidOperationException: Method VosOrdreService.VosRegistrerOrdre can not
be reflected.]

System.Web.Services.Protocols.SoapReflector.ReflectMethod(LogicalMethodInfo
methodInfo, Boolean client, XmlReflectionImporter xmlImporter,
SoapReflectionImporter soapImporter, String defaultNs) +6904
System.Web.Services.Description.SoapProtocolReflector.ReflectMethod() +133

System.Web.Services.Description.ProtocolReflector.ReflectBinding(ReflectedBinding reflectedBinding) +2760
System.Web.Services.Description.ProtocolReflector.Reflect() +739

System.Web.Services.Description.ServiceDescriptionReflector.ReflectInternal(ProtocolReflector[] reflectors) +621
System.Web.Services.Description.ServiceDescriptionReflector.Reflect(Type
type, String url) +117
System.Web.Services.Protocols.DocumentationServerType..ctor(Type type,
String uri) +159
System.Web.Services.Protocols.DocumentationServerProtocol.Initialize() +336
System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing) +99

[InvalidOperationException: Unable to handle request.]
System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing) +258

System.Web.Services.Protocols.WebServiceHandlerFactory.CoreGetHandler(Type
type, HttpContext context, HttpRequest request, HttpResponse response) +90

[InvalidOperationException: Failed to handle request.]

System.Web.Services.Protocols.WebServiceHandlerFactory.CoreGetHandler(Type
type, HttpContext context, HttpRequest request, HttpResponse response) +237

System.Web.Services.Protocols.WebServiceHandlerFactory.GetHandler(HttpContext
context, String verb, String url, String filePath) +104
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String
requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig)
+175

System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +120
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
completedSynchronously) +155