Line.bystartpointendpoint - error message

hello every one
how can I solve this issue for line.bystartpointendpoint node error

error message :
line.bystartpointendpoint operation failed. unable to create line. points are likely coincident.

Hi @HaniTartour could you show what you feed in with expended nodes…

yes , sure
I connected start point and end point comes out from another list
and all list are ok
except this error with error message

allright, but i guees if all list is OK you dont wanna get the error

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The error tells you that at least one pair of points probably represent the same point, which would result in no line. You’ll have to check and make sure that’s not the case. There’s nothing else we can do for you without seeing your data.

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thanks for your help, I will make sure of this issue

yeps…sounds like some prune duplicate could help…maybe