@unknownuser said: I finally discovered the problem. I bought it for personal use and when I select personal use it only show up sketchup Make. I got to select professional use and enter company name bla bla bla in order to go to the pro download page. Can't personal user buy the Pro version?? Thank anyway. You can. Just give 'your name' as your 'company name'...

I have this problem also and it's very frustrating. In some sense my edges must be planer because I can generally break the face into smaller and smaller triangles, all of which become individual faces, until I finally coax the final rectangle to become a face. Then I go back and delete all of the triangle lines except the original outer perimeter and I have a face. It's frustrating because the outer lines are planer or they're not. If SketchUp can finally make a face after I've broken it into many triangles it is planer but for some reason SketchUp doesn't 'know' this until I've gone through this process of breaking it up into smaller and smaller triangles.

@jim said: And also there is the repair broken lines plugin: http://www.crai.archi.fr/RubyLibraryDepot/Ruby/repair_broken_lines.rb Should be a standard on everyone's system. Hi Jim, Thank you for your post. The repair broken lines is the ultimate solution. Hope the developer can make it a contextual menu and let it show up as a right click option. Thank you very much. Regards, Paul