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Updated 3 months ago

Trying to Create ReACT Agent using

Trying to Create ReACT Agent using Mistral LLM using HuggingFace Inference API but getting error

HuggingFaceAPI

import os
from getpass import getpass
from huggingface_hub import login

HuggingFace API

HF_TOKEN = getpass()

login(token=HF_TOKEN)

Loading LLM endpoint

from llama_index.llms.huggingface import HuggingFaceInferenceAPI
llm = HuggingFaceInferenceAPI(model_name="mistralai/Mistral-7B-Instruct-v0.2", token=HF_TOKEN, num_output=512, is_function_calling_model=True, is_chat_model=True)

Simple Calculator

from llama_index.core.agent import ReActAgent
from llama_index.core.llms import ChatMessage
from llama_index.core.tools import BaseTool, FunctionTool

Define Tool

def multiply(a: int, b: int) -> int:
"""Multiply two integers and returns the result integer"""
return a * b

def add(a: int, b: int) -> int:
"""Add two integers and returns the result integer"""
return a + b

def subtract(a: int, b: int) -> int:
"""Subtract two integers and returns the result integer"""
return a - b

multiply_tool = FunctionTool.from_defaults(fn=multiply)
add_tool = FunctionTool.from_defaults(fn=add)
subtract_tool = FunctionTool.from_defaults(fn=subtract)

Mistral

agent = ReActAgent.from_tools([multiply_tool, add_tool, subtract_tool], llm=llm, verbose=True)
response = agent.chat("What is 20+(2*4)? Calculate step by step.")


Error -
NotImplementedError: Messages passed in must be of odd length.
W
1 comment
I'm assuming you are following this doc: https://docs.llamaindex.ai/en/stable/examples/agent/react_agent/?h=react

I would suggest you update all the requirements to latest ones and then try again
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