What this error means

Node INPUT1 finished with status: ERROR caused by: Incomplete record in field # 4 of record # 1
ERROR [WatchDog] - Node INPUT1 error details:
org.jetel.exception.BadDataFormatException: Incomplete record in field # 4 of record # 1
at org.jetel.data.parser.DelimitedDataParser.parseNext(DelimitedDataParser.java:489)
at org.jetel.data.parser.DelimitedDataParser.getNext0(DelimitedDataParser.java:177)
at org.jetel.data.parser.DelimitedDataParser.getNext(DelimitedDataParser.java:173)
at org.jetel.util.MultiFileReader.getNext(MultiFileReader.java:350)
at org.jetel.component.DelimitedDataReader.execute(DelimitedDataReader.java:174)
at org.jetel.graph.Node.run(Node.java:425)
at java.lang.Thread.run(Unknown Source)

every time i am getting this type of errors.
I am new to this tools.
how can i rectify this errors…

This error means, that the Parser hasn’t found all fields or record delimiter before the end of file. If you want to ignore invalid records set different data policy on the Reader. But here (as it fails on the 1st record) I expect, you use wrong metadata for data extraction.