I've used Lumia Imaging SDK (ver 2) for compressing images in my Windows Phone 8.1 RT application. The code for compression randomly throws the following exception:
System.TypeLoadException: Failure has occurred while loading a type.
Requested Windows Runtime type 'Lumia.Imaging.StorageFileImageSource' is not registered.,Message: Failure has occurred while loading a type.,
Stacktrace: at System.StubHelpers.StubHelpers.GetWinRTFactoryObject(IntPtr pCPCMD)
at Lumia.Imaging.StorageFileImageSource..ctor(IStorageFile storageFile)
How can I fix this?
Update: I'm using Visual Studio 2013 Update 5. Details 
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