no compatibility between tB storyboard Pro 3 and 4 ?

Storyboard Pro Storyboard Pro General Discussion
1

Hy
i can’t open a toonboom pro 3 project in Toonboom 4 !
what can i do ?
thanks

2

Opps I didn’t see that this is the Storyboard section.

3

What’s preventing you from doing that?
Is there an error message?