I am receiving thebelow error message when trying to preview my project and I have never had this problem before. I am using Windows 10 on a PC. Any idea? I alreay tried updating to latest version and coyping and pasting the project into a brand new project and nothing worked.
Are you busy with a non-responsive project? In that case be aware of the fact that all preview methods except 'Preview HTML in Browser' (F11) are using a temporary SWF output. Avoid them, because you have a SWF error. Maybe you don't have a default browser with Flash Player plugin?