Unity 4.3 error when I do build (windows phone).

Hi, I try to do a build in windows phone with unity 4.3, I did it in unity 4.2.2 and unity builded the visual studio project, but Now shows me next error and can’t build visual studio project. What can I do?

Error building Player: Exception: Failed to run reference rewriter with command “–target=“Temp/StagingArea\Assembly-CSharp.dll”
–framework=“C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\WindowsPhone\v8.0,
C:\Program Files (x86)\Microsoft SDKs\Windows Phone\v8.0\Libraries”
–platform=“C:\Program Files (x86)\Windows Phone Kits\8.0\Windows MetaData\Windows.winmd”
–support=“Temp/StagingArea/WinRTLegacy.dll” --winmdrefs=”" --system=Unity --dbg=pdb
–alt=System.Net;
System.Net.Sockets,System.Net;
System.Xml.Serialization;
System.ComponentModel,System.Windows;
System.Threading,mscorlib".

[Temp/StagingArea\Assembly-CSharp.dll]

Catastrophic failure while running rrw: System.InvalidOperationException: Sequence contains no elements
at System.Linq.Enumerable.Last[TSource](IEnumerable`1 source)
at Unity.ReferenceRewriter.RewriteTypeReferences.RewriteObjectListToParamsCall(MethodBody methodBody, Int32 instructionIndex)
at Unity.ReferenceRewriter.ReferenceDispatcher.DispatchMethodBody(MethodBody body)
at Unity.ReferenceRewriter.ReferenceDispatcher.DispatchMethod(MethodDefinition method)
at Unity.ReferenceRewriter.ReferenceDispatcher.DispatchMethods(TypeDefinition type)
at Unity.ReferenceRewriter.ReferenceDispatcher.Dispatch()
at Unity.ReferenceRewriter.RewriteOperation.Execute(RewriteContext context)
at Unity.ReferenceRewriter.Program.Main(String args)

I had this same issue. This is a bug in Unity related to WINRT legacy code. Here was my post: link text