WFC problem : The type initializer for 'System.Data.Objects.ELinq.ExpressionConverter' threw an exception.

Question

Hi, my code works fine in windows forms , but fail in WCF .
I reinstalled my iis6 in windows 2003 server , and others silverlight-wcf applications works fine.
The problem is when i used Linq to SQL in WCF.

I have the code debugger, and the error is in the marked line :

             var result = (from publication in dataContext.Publication select publication);

  --->    if (result.Count() > 0)     ---> Result.Count() threw the exception

That's problem is for any entity query ...

My WCF trace log :

EXception Type : System.TypeInitializationException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Meesage : The type initializer for 'System.Data.Objects.ELinq.ExpressionConverter' threw an exception.

StackTrace :

System.Data.Objects.ELinq.ExpressionConverter..ctor(ObjectContext objectContext, BindingContext bindingContext, DbCommandTree commandTree, Expression toConvert, ObjectParameterCollection sourceParams)
System.Data.Objects.ELinq.ELinqQueryState.CreateExpressionConverter()
System.Data.Objects.ELinq.ELinqQueryState.GetExecutionPlan(Nullable`1 forMergeOption)
System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator()
System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
System.Data.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__2[TResult](IEnumerable`1 sequence)
System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot)
System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[S](Expression expression)
System.Linq.Queryable.Count[TSource](IQueryable`1 source)
COTO.Publisher.Facade.PublisherFacade.GetPublications(Entities dataContext) in C:\WorkSpace\COTO\DOTNET\COTOPublisher\COTO.Publisher\COTO.Publisher.Facade\PublisherFacade.cs:line 65
COTO.Publisher.Session.PublisherSession.GetPublications() in C:\WorkSpace\COTO\DOTNET\COTOPublisher\COTO.Publisher\COTO.Publisher.Session\PublisherSession.cs:line 42
COTO.Publisher.Service.PublisherService.GetPublications() in C:\WorkSpace\COTO\DOTNET\COTOPublisher\COTO.Publisher\COTO.Publisher.Service\PublisherService.cs:line 52
SyncInvokeGetPublications(Object , Object[] , Object[] )
System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)
System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)
System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)


I have tried everything , thak you in advance for any help !!!

Walter

Answer 1

The WCF works fine in my Windows Vista Business / IIS7 .

Best Regards,

Answer 2

More about the problem :

System.BadImageFormatException: Bad method token



<ExceptionType>System.TypeInitializationException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
<Message>The type initializer for 'MemberAccessTranslator' threw an exception.</Message>
<StackTrace>
at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator..ctor()
at System.Data.Objects.ELinq.ExpressionConverter.&lt;GetTranslators&gt;d__0.MoveNext()
at System.Data.Objects.ELinq.ExpressionConverter.InitializeTranslators()
at System.Data.Objects.ELinq.ExpressionConverter..cctor()
</StackTrace>
<ExceptionString>System.TypeInitializationException: The type initializer for 'MemberAccessTranslator' threw an exception. ---&gt; System.BadImageFormatException: Bad method token.
   at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator.RenameCanonicalFunctionPropertyTranslator.&lt;GetProperties&gt;d__52..ctor(Int32 &lt;&gt;1__state)
   at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator.&lt;GetPropertyTranslators&gt;d__4c.MoveNext()
   at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator..cctor()
   --- End of inner exception stack trace ---
   at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator..ctor()
   at System.Data.Objects.ELinq.ExpressionConverter.&lt;GetTranslators&gt;d__0.MoveNext()
   at System.Data.Objects.ELinq.ExpressionConverter.InitializeTranslators()
   at System.Data.Objects.ELinq.ExpressionConverter..cctor()</ExceptionString>
<InnerException>
<ExceptionType>System.BadImageFormatException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
<Message>Bad method token.</Message>
<StackTrace>
at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator.RenameCanonicalFunctionPropertyTranslator.&lt;GetProperties&gt;d__52..ctor(Int32 &lt;&gt;1__state)
at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator.&lt;GetPropertyTranslators&gt;d__4c.MoveNext()
at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator..cctor()
</StackTrace>
<ExceptionString>System.BadImageFormatException: Bad method token.
   at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator.RenameCanonicalFunctionPropertyTranslator.&lt;GetProperties&gt;d__52..ctor(Int32 &lt;&gt;1__state)
   at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator.&lt;GetPropertyTranslators&gt;d__4c.MoveNext()
   at System.Data.Objects.ELinq.ExpressionConverter.MemberAccessTranslator..cctor()</ExceptionString>
</InnerException>