Creating surface on gmsh with imported brep file
 

I am trying to import 2d brep geometry and create 2d mesh using gmsh

However when I try using 'plane surface' feature, I can select all boundary lines but cannot actually create surface.

Main difference btw brep and gmsh created geo file was that while even though two lines intersect each other it is calculated that they lie on different point at brep file...

How can I fix this or how can I create surface on brep file and make mesh?