Try with the following options.It worked for me.you might want to make
sure that the file you write is valid
for.e.gconcat("c:\eForms\CD\CDPaymentMaint.pdf",add-days-to-date(/process_data/@strDate1,
days)) make sure that the variables have values.strDate1 should be a
valid value, and days should be a valid number.i tried and found the
result.