Sheet index (-2147483648) is out of range (0..15)

Dear useRs,
while working in XLConnect, i noticed a strange error
"Error: IllegalArgumentException (Java): Sheet index (-2147483648) is out of range (0..15)"
there is not much help available about it online. Can anyone please help?

That's the value of NA_integer_ in R, so I guess someone passed NA.

elisa  		 	   		
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and provide commented, minimal, self-contained, reproducible code.

That does mean you!  We have no reproducible code, and you were asked to 
contact the XLConnect author before posting here: what did he say?

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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