Hello, 
     
   I want to transform my 2D model into a 3D model. So I imported the Flux object. Now I have my faces and the Sketch. The Nature of the imported geometric entities is 'NO_EXIST'. I change it to 'STANDARD'. I create a Transformation: 
   
   Then I wanted to extrode the faces: 
   
   After that I want to build the faces with the command: [Geometry] -> [Build] -> [Build faces] 
   But then the following error appears:  
   
   What does it mean?  
   The geometry has no defects. 
     
   Is it generally possible to make a 360 degree Transformation? 
     
   Thanking you in advance.