The UI object — which represents the
<body> element in the page — is controlled by Flow when running the MPR. As a result, anything extending
UI should be converted. Actually,
UI class shouldn’t be used for layout or navigation handling. At the end of this part of the process, you shouldn’t have any
UI class — unless you have a real use case for it.
Depending on what’s used in the project, you have several conversion paths:
Continue to Converting a UI.