Hi @Bay,
Firstly, I would like to make clear that the latest version of GUI Guider is v1.8.1, so I highly recommend you go for that version instead.
Also, if you are using the elevator demo, there is no need to upgrade the project for each new version of GUI Guider, since the demo project is already present in each. Please just create a new elevator demo on the latest version of GUI Guider and let me know if you are able to generate code there.
BR,
Edwin.