callgraphgenerationtask Error during conversion

[Stonegaard]

I tried converting another project, and I do not understand what I should do with the error I received. I get the following error, could you please guide me, what this mean: The "CallGraphGenerationTask" task failed unexpectedly. System.ArgumentNullException: Value cannot be null. Parameter name: key   at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)   at System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)   at Artinsoft.Winforms2Silverlight.ControlFlowCutProcessing.MemberNodes.GetMethod(String fullName)   at Artinsoft.Winforms2Silverlight.ControlFlowCutProcessing.CallInformationCollector.ProcessMethodDeclaration(CSMethod methodDecl, FlowCutCollectionState state)   at Artinsoft.Winforms2Silverlight.ControlFlowCutProcessing.CallInformationCollector.<CreateSearcher>b__3(CSMethod methodDecl, FlowCutCollectionState state)   at Artinsoft.Common.Tools.Search.ActionSearchDelegate`2.Visit(T node, TContext ctx)   at Artinsoft.Common.Visitor.VisitorDelegate`2.Action(Object node, TContext ctx)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.VisitDelegation(TVisitable node, TDelegate nodeDelegate)   at Artinsoft.Common.Tools.ReplacerVisitor`1.VisitDelegation(IAst node, IAstDelegate`1 nodeDelegate)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.Visit(TVisitable node)   at Artinsoft.Common.AST.Compound`2.Accept(IVisitor`1 visitor)   at Artinsoft.Common.Tools.ReplacerVisitor`1.LoopLeftToRight(ISlotContainer container, Int32 slothCount)   at Artinsoft.Common.Tools.ReplacerVisitor`1.ChildrenLoop(IAst node)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.VisitChildren(IVisitorDelegate`1 nodeDelegate, TVisitable node)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.Visit(TVisitable node)   at Artinsoft.Common.AST.Compound`2.Accept(IVisitor`1 visitor)   at Artinsoft.Common.Tools.ReplacerVisitor`1.LoopLeftToRight(ISlotContainer container, Int32 slothCount)   at Artinsoft.Common.Tools.ReplacerVisitor`1.ChildrenLoop(IAst node)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.VisitChildren(IVisitorDelegate`1 nodeDelegate, TVisitable node)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.Visit(TVisitable node)   at Artinsoft.Common.AST.Compound`2.Accept(IVisitor`1 visitor)   at Artinsoft.Common.Tools.ReplacerVisitor`1.LoopLeftToRight(ISlotContainer container, Int32 slothCount)   at Artinsoft.Common.Tools.ReplacerVisitor`1.ChildrenLoop(IAst node)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.VisitChildren(IVisitorDelegate`1 nodeDelegate, TVisitable node)   at Artinsoft.Common.Visitor.DelegatorVisitor`3.Visit(TVisitable node)   at Artinsoft.Common.AST.Compound`2.Accept(IVisitor`1 visitor)   at Artinsoft.Common.Tools.ReplaceSearcher`2.Execute[T](T& ast, TVisitor visitor)   at Artinsoft.Common.Tools.ReplaceSearcher`2.Execute[T](T& ast, Traversal traversal, TState state)   at Artinsoft.Winforms2Silverlight.ControlFlowCutProcessing.CallInformationCollector.CollectCallInformationFromFiles(Project project, FlowCutCollectionState collectionState, Action`1 startWithElementCallback, Action`1 doneWithElementCallback)   at ControlFlowCutProcessing.CallGraphGenerationTask.ExecuteImpl()   at Artinsoft.CSharp.Tasks.AbstractTask.BeforeExecuteImpl()   at Artinsoft.Common.MSBuild.BaseCancellableTask.Execute()   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()   at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__20.MoveNext()

[Stonegaard]

Any chance of a comment ??

[luis]

Hi,

First of all make sure, that the project compiles without errors and retry the conversion.

If the error still occurs, then please let us now if you have the following scenario:

A method definition that is marked as "async" , has "void" as its return type and is an explicit implementation of a interface method.

For example:

public interface MyInterface

{

     void MyMethod();

}

public class MyClass  : MyInterface

{

     async void MyInterface.MyMethod() {

     }

}

Is there a something similar to this scenario in your project?

Thanks 

[Stonegaard]

The code of course compiles it is a working silverlight app.

The conversion does not work, and we have no interface functions.

So the error persists.

[Olman]

Can we setup a call to take a look of the problem?