# Versions of langchain libraries do not satisfy

**URL:** <https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959>\
**Category:** Deep Agents\
**Created:** [February 16, 2026, 4:36pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959 "2026-02-16T16:36:37Z")\
**Posts on this page:** 12\
**Page:** 1

<div class="post-metadata">

**Author:** ![Samir\_AI](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Samir\_AI](https://forum.langchain.com/u/Samir_AI)\
**Post date:** [February 16, 2026, 4:36pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/1 "2026-02-16T16:36:37Z")

</div>

I cannot import this libs

```auto
from langchain.agents import AgentExecutor, create_react_agent
from langchain_core.memory import ConversationBufferMemory

```

while these imports are quite well

from langchain\_openai import ChatOpenAI  
from langchain\_core.callbacks import BaseCallbackHandler  
from langchain\_core.agents import AgentAction, AgentFinish  
from langchain\_core.prompts import PromptTemplate

What is the problem and how can I manage this problem?

P.S.  
pip show langchain  
Name: langchain  
Version: 1.2.10  
Summary: Building applications with LLMs through composability  
Home-page: [https://docs.langchain.com/](https://docs.langchain.com/)

---

<div class="post-metadata">

**Author:** ![pawel-twardziak](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.langchain.com/pawel-twardziak/32/960_2.png) [@pawel-twardziak](https://forum.langchain.com/u/pawel-twardziak)\
**Post date:** [February 16, 2026, 5:59pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/2 "2026-02-16T17:59:48Z")

</div>

hi @Samir_AI

```py
from langchain_classic.agents import AgentExecutor
from langchain_classic.memory import ConversationBufferMemory
from langgraph.prebuilt import create_react_agent

```

Huge favor - if it helps, please mark it `Resolved` for the others so they can make use of it too.

---

<div class="post-metadata">

**Author:** ![Samir\_AI](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Samir\_AI](https://forum.langchain.com/u/Samir_AI)\
**Post date:** [February 16, 2026, 6:41pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/3 "2026-02-16T18:41:54Z")

</div>

> [@pawel-twardziak](#):
>
> ```auto
> from langchain_classic.agents import AgentExecutor
> from langchain_classic.memory import ConversationBufferMemory
> from langgraph.prebuilt import create_react_agent
> 
> ```

```auto
agent = create_react_agent(
        model=llm,
        tools=tools,
        prompt=react_prompt
    )

@deprecated("create_react_agent has been moved to `langchain.agents`. Please update your import to `from langchain.agents import create_agent`.", category=LangGraphDeprecatedSinceV10)

TypeError: create_react_agent() missing 1 required positional argument: 'model'

```

I can’t understand what import is correct at last

TypeError: create\_react\_agent() missing 1 required positional argument: ‘model’

---

<div class="post-metadata">

**Author:** ![pawel-twardziak](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.langchain.com/pawel-twardziak/32/960_2.png) [@pawel-twardziak](https://forum.langchain.com/u/pawel-twardziak)\
**Post date:** [February 16, 2026, 7:25pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/4 "2026-02-16T19:25:54Z")

</div>

hmmm how do you define `llm` var?

This works fine:

```py
agent1 = create_react_agent(model="openai:gpt", tools=[])
agent_executor = AgentExecutor(agent=agent1, tools=[])
memory = ConversationBufferMemory()

```

---

<div class="post-metadata">

**Author:** ![Samir\_AI](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Samir\_AI](https://forum.langchain.com/u/Samir_AI)\
**Post date:** [February 16, 2026, 7:37pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/5 "2026-02-16T19:37:07Z")

</div>

```auto
llm = ChatOpenAI(
    base_url="https://api-inference.huggingface.co/v1/",
    api_key=os.getenv("HUGGINGFACEHUB_API_TOKEN"),
    model="TinyLlama/TinyLlama-1.1B-Chat-v1.0",
    temperature=0.1, # Низкая температура для более детерминированных вызовов инструментов
    streaming=True, # Включаем стриминг для отладки
    callbacks=[StreamingCallback()] # Вывод в консоль
)

```

agent = create\_react\_agent(  
llm=llm,  
tools=tools,  
prompt=react\_prompt  
)

memory = ConversationBufferMemory(  
memory\_key=“chat\_history”,  
return\_messages=True  
)

agent\_executor = AgentExecutor(  
agent=agent,  
tools=tools,  
memory=memory,  
verbose=True,  
handle\_parsing\_errors=True,  
max\_iterations=5,  
early\_stopping\_method=“generate”  
)

---

<div class="post-metadata">

**Author:** ![pawel-twardziak](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.langchain.com/pawel-twardziak/32/960_2.png) [@pawel-twardziak](https://forum.langchain.com/u/pawel-twardziak)\
**Post date:** [February 16, 2026, 7:47pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/6 "2026-02-16T19:47:48Z")

</div>

```py
agent = create_react_agent(
  model=llm,
  tools=tools,
  prompt=react_prompt
)

```

and ignore the type issue

---

<div class="post-metadata">

**Author:** ![Samir\_AI](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Samir\_AI](https://forum.langchain.com/u/Samir_AI)\
**Post date:** [February 16, 2026, 7:49pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/7 "2026-02-16T19:49:52Z")

</div>

It does not work properly

LangGraphDeprecatedSinceV10: create\_react\_agent has been moved to `langchain.agents`. Please update your import to `from langchain.agents import create_agent`. Deprecated in LangGraph V1.0 to be removed in V2.0.  
agent = create\_react\_agent(  
LangChainDeprecationWarning: Please see the migration guide at: [LangChain overview - Docs by LangChain](https://python.langchain.com/docs/versions/migrating_memory/)  
memory = ConversationBufferMemory(

This is ok?

---

<div class="post-metadata">

**Author:** ![pawel-twardziak](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.langchain.com/pawel-twardziak/32/960_2.png) [@pawel-twardziak](https://forum.langchain.com/u/pawel-twardziak)\
**Post date:** [February 16, 2026, 7:51pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/8 "2026-02-16T19:51:22Z")

</div>

yes, ignore the warnings. Only check whtether it works at runtime

---

<div class="post-metadata">

**Author:** ![Samir\_AI](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Samir\_AI](https://forum.langchain.com/u/Samir_AI)\
**Post date:** [February 16, 2026, 7:52pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/9 "2026-02-16T19:52:08Z")

</div>

Thank you very match!!

continue working…

---

<div class="post-metadata">

**Author:** ![pawel-twardziak](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.langchain.com/pawel-twardziak/32/960_2.png) [@pawel-twardziak](https://forum.langchain.com/u/pawel-twardziak)\
**Post date:** [February 16, 2026, 7:52pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/10 "2026-02-16T19:52:13Z")

</div>

or use `create_agent` → `from langchain.agents import create_agent`

---

<div class="post-metadata">

**Author:** ![Samir\_AI](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Samir\_AI](https://forum.langchain.com/u/Samir_AI)\
**Post date:** [February 16, 2026, 7:54pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/11 "2026-02-16T19:54:21Z")

</div>

This is also ok, but it does not include prompt((

agent = create\_agent(  
model=llm,  
tools=tools,  
**prompt=react\_prompt**  
)

---

<div class="post-metadata">

**Author:** ![pawel-twardziak](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.langchain.com/pawel-twardziak/32/960_2.png) [@pawel-twardziak](https://forum.langchain.com/u/pawel-twardziak)\
**Post date:** [February 16, 2026, 7:57pm UTC](https://forum.langchain.com/t/versions-of-langchain-libraries-do-not-satisfy/2959/12 "2026-02-16T19:57:08Z")

</div>

read the docs [Agents | LangChain Reference](https://reference.langchain.com/python/langchain/agents/)