SAP_XI_IDOC/IDOCFlatToXmlConvert, java.lang.NumberFormatException

Hi,

I am getting the below exception when I tried to convert IDoc Flat File to IDoc XML using the module "SAP_XI_IDOC/IDOCFlatToXmlConvert" in sender File adapter.

Exception:

Module Exception 'com.sap.aii.af.idoc.exception.IDOCModuleException' found, cause: java.lang.NumberFormatException: For input string: ""

I have successfully uploaded and created the IDoc with the same file from WE19 transaction.

Any idea about this Exception.

Thanks,

Krishnaraju.