When I try to do the analysis, it gives an error: "The system cannot be resolved, do a geometric check to detect the problem". I did the geometric check, it didn't give an error, I did the 3d joint check, but it gave the same error again. I was using demo idecad 10 normally, I was never profitable with such a problem, but I just started my new job, idecad 7 is present and gives an error constantly.