unable to integrate 3d Editor widget in my code

Question

Hello,I tried to integrate 3d editor widget "ArcGIS API for JavaScript Sandbox " in my code  but its not working showing warning in chrome dev tool which is

[esri.views.3d.layers.graphics.Graphics3DCore] Graphic in layer 17217e39a7c-layer-0 has no symbol and will not render

Thank you in advance

AnupamSharma · Answer

Also When i click the add feature in 3d editor widget ,it show me undefine