Error in if (is.na(n) || n > 65536L) stop("size cannot be NA nor exceed 65536") : missing value where TRUE/FALSE needed

Dear useRs,

i am using NbClust to determine appropriate number of cluster for hclustering. i am consistently getting the following error

Error in if (is.na(n) || n > 65536L) stop("size cannot be NA nor exceed 65536") :
  missing value where TRUE/FALSE needed

It looks like your variable 'n' is NULL. I am not familiar with
NbClust but if I had to guess, my guess would be that it expects a
matrix with 2 dimensions (one of which is 'n'), and you are giving it
an argument whose 'dim' is NULL (perhaps you think you have a
data.frame but it is in fact a list? Or instead of a matrix you give a
vector (or distance)?)

If you give us more information (and reproducible code!), we can help you more.

HTH

Peter