Error from running R2WinBUGS in R

Hi All:
I am getting an error (highlighted) from running R2WinBUGS in R.
To be able to replicate the situation heres the code:
.#Set working directory
setwd("H://AChaudhuri/Testing/CSVS")
matrix=NULL
csvs <- paste("MVN", 1:2, ".csv", sep="")
for(i in 1:length(csvs)){
   matrix[[i]] <- read.csv(file=csvs[i], header=T)
   print(matrix[[i]])
}

So now I have read in 2 simulated datasets which  look like
  Y1 Y2
1 11  6
2  8  5
3 25 13
4  1 13
5  8 22
   Y1 Y2
1  9  1
2  7  9
3 25 13
4  1 18
5  9 12

My next step is to run a multivariate logit normal model on these datasets
and automate this process for such simulated datasets. Heres the model
statement:
model
  {
   for (j in 1 : Nf)

       {
       p1[j, 1:2 ] ~ dmnorm(gamma[1:2 ], T[1:2 ,1:2 ])

       for (i in 1:2)
       {
      logit(p[j,i])<-p1[j,i]

      Y[j,i] ~ dbin(p[j,i],n)
}}

I am trying to use the following code to run it in R
library("R2WinBUGS")
bugs.output <- list()
for(i in 1:2){

        Y <-(matrix[i])

        bugs.output[[i]] <- bugs(
        data=list(Y=Y, Nf=5), # change for no of sites
     inits=NULL,
        model.file="M-LN_model_trial.txt",
        parameters.to.save = c("p","rho","sigma2"),
n.chains=1, n.iter=12000, n.burnin=5000,
bugs.directory="H://AChaudhuri/winbugs14/WinBUGS14",
working.directory=NULL)}


Error in FUN(X[[1L]], ...) :

   .C(..): 'type' must be "real" for this format

Any suggestion would be helpful.
Thanks!

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