clean up: raise exception with message
clean up: raise exception with message

sfepy/sfepy,vlukes/sfepy,rc/sfepy,lokik/sfepy,sfepy/sfepy,vlukes/sfepy,BubuLK/sfepy,BubuLK/sfepy,lokik/sfepy,vlukes/sfepy,lokik/sfepy,rc/sfepy,lokik/sfepy,BubuLK/sfepy,rc/sfepy,sfepy/sfepy