better error handling on extraction
@Karam identified that the failure is unclear if lineextract
fails. A particular case of this is when the uintah-build-path
was mistakenly (understandably so) written with the StandAlone
directory at the end. That's an easy mistake to make, so let's add something that catches that and produces a more useful error message.
FYI, to debug extraction issues one can add verbose=True
to the extract_from_uintah_archive
call.