UPDATE: better error reporting
UPDATE: better error reporting

git-svn-id: bb9067c08d54ce50de2ede808ec6cded7c5f2fa2@13733 a09ad3ba-1a0f-0410-b1b9-c67202f10d70

CloverETL/CloverETL-Engine,CloverETL/CloverETL-Engine,CloverETL/CloverETL-Engine,CloverETL/CloverETL-Engine