Duplicated DLL in the "Detected Dependencies" folder

In my solution I have to project using the same references (AxInterop.QTOControlLib.dll, Interop.QTOControlLib.dll and Interop.QTOLibrary.dll).

My problem is that in my deployement project, these dependencies ap开发者_运维问答pear twice in the "Detected Dependencies" folder, thus lead to several warning like : Warning 1 Two or more objects have the same target location ('[targetdir]\interop.qtocontrollib.dll') C:\xxx\xxx\xxxx.vdproj

How can I get rid of that?

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The thread in this link on MSDN discusses a similar problem and offers a few suggestions.