Packages(xlsx,dplyr) Execution inside the HPC cluster

[nithinev17]

Is there any way to prepare an excelsheet rows with xlsx package in HPC cluster
I want to add excel sheet rows inside the function call
HPC code -
HPCCall <- function(x,y){
summ <- data.frame("compound" = mydata$Compound[i])
allSumm <- addDataFrame(summ, sheet = ws_summary, col.names = TRUE)
}
Cluster MQ Q Function
wb = createWorkbook()
ws_summary <- createSheet(wb, sheetName = "Summary")
clustermq::Q(HPCCall, x=1:nrow(mydata), const=list(y=mydata), export = list(wb=wb,ws_summary=ws_summary),pkgs= c("xlsx"), n_jobs = 2, log_worker=TRUE)

Error
jobs failed (0 warnings). Stopping.
(Error #1) java.lang.NullPointerException