I am performing aggregation on a set of 16 columns. But while compiling the jobs below error is shown "no derivation found for column '%1' in aggregator" .
my job design is simple. source --> Transform --> aggregator --> Target(file)
Can anyone help me out with this. I have checked the columns and metadata and I don't see this '%1' column there. Googled also and didn't find any info on this particular error.