ai/docs/09-troubleshooting/10-use-chat-tools-no-response.mdx

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---
title: useChat No Response
description: Troubleshooting errors related to the Use Chat Failed to Parse Stream error.
---

# `useChat` No Response

## Issue

I am using [`useChat`](/docs/reference/ai-sdk-ui/use-chat).
When I log the incoming messages on the server, I can see the tool call and the tool result, but the model does not respond with anything.

## Solution

To resolve this issue, convert the incoming messages to the `ModelMessage` format using the [`convertToModelMessages`](/docs/reference/ai-sdk-ui/convert-to-model-messages) function.

```tsx highlight="9"
import { openai } from '@ai-sdk/openai';
import { convertToModelMessages, streamText } from 'ai';
__PROVIDER_IMPORT__;

export async function POST(req: Request) {
  const { messages } = await req.json();

  const result = streamText({
    model: __MODEL__,
    messages: await convertToModelMessages(messages),
  });

  return result.toUIMessageStreamResponse();
}
```