tesseract_ros
                                
                                
                                
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                        approximate merit function got worse (-4.507e-03). (convexification is probably wrong to zeroth order)
[ERROR] approximate merit function got worse (-4.507e-03). (convexification is probably wrong to zeroth order)
That error is normal in most case because the nonlinear system is being approximated by a quadratic. It should be changed to warn.
ok ,thanks a lot