Error msg: Project file could not be saved. HELP! Jul 10, 2013 By Laura Payette Trying not to panic, but I got an error message while trying to save my Storyline file that says: "The project file could not be saved. Store must be open for this operation." ?!?!?!?!?!?! What store?! This is a file I created last fall and have worked in off and on since then. Help!