Creates a new project in After Effects, replicating the File > New > New Project menu command.
If the current project has been edited, the user is prompted to save it. If the user cancels out of the Save dialog box, the new project is not created and the method returns null. Use app.project.close(CloseOp-tions.DO_NOT_SAVE_CHANGES) to close the current project before opening a new one. See “Project close() method”.
A new Project object, or null if no new project is created.