New view of Chart type, no View based on

New view of Chart type, no View based on

Bonjour, I want to create a new view and I have select the 'Chart' type. But It is not possible to select a 'View based on', the drop list is empty. Not that with other type (list for example), I can select one of my existing views. Thank you for your comment B. R. jose.gmail France - FF et XP2003