The error occurs in large XML " BW-LARGEXML-100002 com.tibco.plugin.bwlx.errors.FileNotFoundException." 
This error occurs in "File to Stream", "XML Splitter", activities where we directly use the filename as input.

In "File to Stream activity", if the file is not available, the activity tries to create an "input stream". If the input stream gets a NULL value, then the error "BW-LARGEXML-100002 com.tibco.plugin.bwlx.errors.FileNotFoundException."occurs.
 
The above error occurs in LargeXML activities because the input XML file is not available at the given location. Sometimes this error also occurs due to the file extension (.xml) is not applied to the input file. To resolve this error, we require adding the input file at the input location or giving file extension (.xml) to file. 

 

To resolve this error we require adding the input file at the input location or giving the file extension (.xml) to the file.