惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

D
Docker
Apple Machine Learning Research
Apple Machine Learning Research
OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
博客园 - 三生石上(FineUI控件)
月光博客
月光博客
freeCodeCamp Programming Tutorials: Python, JavaScript, Git & More
WordPress大学
WordPress大学
Hugging Face - Blog
Hugging Face - Blog
钛媒体:引领未来商业与生活新知
钛媒体:引领未来商业与生活新知
M
MIT News - Artificial intelligence
腾讯CDC
B
Blog RSS Feed
H
Help Net Security
J
Java Code Geeks
有赞技术团队
有赞技术团队
Y
Y Combinator Blog
博客园_首页
Last Week in AI
Last Week in AI
博客园 - 【当耐特】
博客园 - Franky
B
Blog
MongoDB | Blog
MongoDB | Blog
博客园 - 叶小钗
Martin Fowler
Martin Fowler

InvalidUpdateError: Node __copy__ does not exist - LangGraph State Update Failure

InvalidUpdateError: Node __copy__ does not exist - LangGraph State Update Failure InvalidUpdateError: Node __copy__ does not exist - LangGraph State Update Failure
InvalidUpdateError: Node __copy__ does not exist - LangGr...
Petar · 2025-09-16 · via InvalidUpdateError: Node __copy__ does not exist - LangGraph State Update Failure

Description: I’m encountering a persistent InvalidUpdateError when attempting to update thread state in LangGraph API v0.4.20. The error occurs during state updates and suggests that a node named __copy__ doesn’t exist in my graph definition. This is happening with langgraph dev –allow-blocking and i put some multiple inputs in studio Error Details: langgraph.errors.InvalidUpdateError: Node __copy__ does not exist Stack Trace Context: Error occurs in graph.aupdate_state() → abulk_update_st...