NameError: name 'START' is not defined - Unit 2.3

#97
by OliverBrown233 - opened

email_graph.add_edge(START, "read_email")
I got a NameError hear. In Unit 2.3 example. I don't know why it happens.

hello Oliver,

change:
from langgraph.graph import StateGraph, END

to:
from langgraph.graph import StateGraph, END, START

That should solve your issue

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