Cannot call this method in this context: Graphic already has an assigned id.

[xiaoguangyan]

Hi to All, sometimes but not always a problem will be encountered(showed in bellow pic) when adding Graphic to GraphicOverlay. 

[NagmaYasmin]

Hi Yan,

Please look at the thread that has the same issue a yours:

https://community.esri.com/thread/186645-im-getting-a-new-error-calling-graphicsoverlaygraphicsaddgr...