Widget importer can´t import widgets made for fortuna

Hi again, I have troubles when using the suggested plugin related into the documentation file: “Widget Importer & Exporter”, so when I go to the folder /DemoData/Widgets/fortuna_export-widgets.wie and try to import this file as commented into the documentation file, It shows me an error and says “it can not import widgets that has not been generated with it”

¿what wan I do? Please help! my expectations on this theme where very high! and Have troubles with visual composer as well…