open_deep_research，langgraph

[xumingming790]

Why does it report an error at startup? please ,please,please

[onestardao]

The error seems to stem from:

Error checking Langsmith access `langgraph.License.validate`

This usually happens when the environment variables for LangSmith / LangGraph licensing aren’t set up properly at boot time, especially if the .env or system export isn’t loading early enough in the runtime context.

Make sure you export your credentials (or load your .env) before any part of LangGraph is imported.

Also double-check:

• Your LANGSMITH_API_KEY (or equivalent) is defined
• Any project ID or org context required by License.validate() is present
• No .validate() call is being manually patched or deferred improperly

—

I’ve been building a diagnostic map for these common LangChain / LangGraph boot errors — from licensing to memory issues. Feel free to reach out if you'd like to compare notes. I don’t post links unless asked.