ai-agents-pydantic-compatibili-using-pydanticoutputparser-with-a-pydantic-v2-base-42a1d332

THEN Downgrade LangChain to version 0.1.5 or earlier, or ensure your output schema inherits from pydantic v1 BaseModel (from pydantic.v1) instead of pydantic v2. For create_structured_output_runnable, pass a pydantic v1 model or use the downgraded version.

# Instead of from pydantic import BaseModel (v2), use:
from pydantic.v1 import BaseModel

class TestModel(BaseModel):
    test_attribute: str