Referencing dlls in Unity Windows Store application

Hello,

I am trying to use WinRT Component in Windows Phone(8.1) Application built through unity. The Windows Runtime Component is "CustomVideoMFT.winmd". I have written a wrapper in .net(BridgeWrapper.dll) which acts as the bridge around Windows Runtime component & Unity.

There are two versions of this Bridge i.e one for the Windows Store Application & other one is a placeholder version for the Editor to successfully compile the scripts.

But, when I am trying to build the Project as a windows store Application, it fails with the following error:

Exception: Failed to run Reference Rewriter with cmdline --target="Temp/StagingArea\Plugins\WSA\BridgeWrapper.dll" --framework="C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\WindowsPhoneApp\v8.1" --additionalreferences="Temp/StagingArea","Temp/StagingArea\TempSerializationWeaver\Plugins\WSA","Temp/StagingArea\TempSerializationWeaver\Plugins\WSA\X86","Temp/StagingArea\TempSerializationWeaver\Plugins\WSA\ARM","Temp/StagingArea\TempSerializationWeaver\Plugins\WSA\PhoneSDK81","Temp/StagingArea\TempSerializationWeaver\Plugins\WSA\PhoneSDK81\X86","Temp/StagingArea\TempSerializationWeaver\Plugins\WSA\PhoneSDK81\ARM" --platform="C:\Program Files (x86)\Windows Phone Kits\8.1\References\CommonConfiguration\Neutral\Windows.winmd" --support="Temp/StagingArea\UnityEngine.dll" --supportpartialns=Unity.Partial --system=System --dbg=pdb --alt=System.Xml.Serialization --ignore=System.IConvertible,mscorlib.[Temp/StagingArea\Plugins\WSA\BridgeWrapper.dll] Catastrophic failure while running rrw: System.NotSupportedException: Specified method is not supported. at Mono.Cecil.PE.ImageWriter.WritePEFileHeader() at Mono.Cecil.PE.ImageWriter.WriteImage() at Mono.Cecil.ModuleWriter.WriteModuleTo(ModuleDefinition module, Stream stream, WriterParameters parameters) at Mono.Cecil.ModuleDefinition.Write(String fileName, WriterParameters parameters) at Unity.ReferenceRewriter.Program.Main(String[] args) PostProcessMetroPlayer.RunReferenceRewriter (WSASDK wsaSDK, System.String playerPackage, System.String stagingArea, System.String assemblyPath, System.String winRTLegacyPath) (at C:/buildslave/unity/build/PlatformDependent/MetroPlayer/Extensions/Managed/PostProcessMetroPlayer.cs:325) MetroPlugin.RunReferenceRewriter (System.String playerPackage, System.String stagingArea, System.String winrtLegacyPath) (at C:/buildslave/unity/build/PlatformDependent/MetroPlayer/Extensions/Managed/MetroPlugin.cs:148) PostProcessMetroPlayer.PostProcessSDKSpecific (WSASDK targetSDK, BuildTarget target, BuildOptions options, System.String playerPackage, System.String stagingArea, .ProjectImages images, .LibraryCollection libraryCollection) (at C:/buildslave/unity/build/PlatformDependent/MetroPlayer/Extensions/Managed/PostProcessMetroPlayer.cs:890) PostProcessMetroPlayer.PostProcess (BuildTarget target, BuildOptions options, System.String installPath, System.String stagingAreaData, System.String stagingArea, System.String playerPackage) (at C:/buildslave/unity/build/PlatformDependent/MetroPlayer/Extensions/Managed/PostProcessMetroPlayer.cs:597) UnityEditor.Metro.BuildPostprocessor.PostProcess (BuildPostProcessArgs args) (at C:/buildslave/unity/build/PlatformDependent/MetroPlayer/Extensions/Managed/ExtensionModule.cs:84) UnityEditor.PostprocessBuildPlayer.Postprocess (BuildTarget target, System.String installPath, System.String companyName, System.String productName, Int32 width, Int32 height, System.String downloadWebplayerUrl, System.String manualDownloadWebplayerUrl, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:316) UnityEditor.HostView:OnGUI()

I am not able to understand which method it is complaining about not being supported. Has anyone faced any similar issue here?