Header index out of range.

[#1]

I'm converting pipe delimited text file to parquet. to do so I'm using convert record processor. 

Reader-csv reader

writer-ParquetSetWriter.

schema strategy- InferSchema in reader and inherit record schema in writer. 

But I'm getting error in ConvertRecord processor. It says that index for header "ColumnName" is 24 but has only 24 values.