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[Camille Wormser <>]

 wrote:
> when I want to compile my project, in the above file I get several errors:
>
> for "typedef typename Geom_traits::Arrangement_type_2  AT2;":
> error C2039: 'Arrangement_type_2' : is not a member of 'CGAL::Sdgtw2<Gt_base>'
>         with
>         [
>             Gt_base=int
>         ]
> error C2039: 'const_Point_handle' & 'Point_handle' & 'Point_container': is not a 
> member of 'CGAL::Boolean_tag<b>'
>         with
>         [
>             b=true
>         ]
>   
> so who is causing this problem? it is now the third day I am struggling with this error?

It seems that your are not instantiating the Segment_Delaunay_graph 
templates parameters properly. You should at least provide the relevant 
lines of code.