''ImageFormat' is ambiguous in the namespace 'System.Drawing.Imaging'

I've just upgraded the Aspose packages within one of our ASP.Net systems and stumbled across a weird issue - a couple of ambiguous reference style errors, instinctively I attempted the fix of fully qualifying the reference...but it still doesn't seem to have fixed it.

One instance is this particular if block:

If converter.HasNextImage() Then
    converter.GetNextImage(Path.GetDirectoryName(fileToConvert) & "\" & Path.GetFileNameWithoutExtension(fileToConvert) & "_small" & suffix, System.Drawing.Imaging.ImageFormat.Jpeg, newWidth, newHeight, 75)
End If

Where ImageFormat is supposedly ambiguous. I suspect it's something to do with the Aspose.Imaging DLL, but I'm not sure how to resolve it.

Has anyone else got a solution other than just binning the Aspose.Imaging DLL?

UPDATE: After systematically removing the suspected DLLs it seems to be the Aspose.Drawing DLL that is the problem



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