📄 ai-sdk/docs/troubleshooting/unclosed-streams
File: unclosed-streams.md | Updated: 11/15/2025
Source: https://ai-sdk.dev/docs/troubleshooting/unclosed-streams
Menu
v5 (Latest)
AI SDK 5.x
Model Context Protocol (MCP) Tools
Client-Side Function Calls Not Invoked
Server Actions in Client Components
useChat/useCompletion stream output contains 0:... instead of text
Tool Invocation Missing Result Error
Streaming Not Working When Deployed
Streaming Not Working When Proxied
Getting Timeouts When Deploying on Vercel
useChat Failed to Parse Stream
Server Action Plain Objects Error
Custom headers, body, and credentials not working with useChat
TypeScript performance issues with Zod and AI SDK 5
Repeated assistant messages in useChat
onFinish not called when stream is aborted
Tool calling with generateObject and streamObject
Abort breaks resumable streams
Streaming Status Shows But No Text Appears
Stale body values with useChat
Unsupported model version error
Object generation failed with OpenAI
Model is not assignable to type "LanguageModelV1"
TypeScript error "Cannot find namespace 'JSX'"
React error "Maximum update depth exceeded"
Jest: cannot find module '@ai-sdk/rsc'
Copy markdown
==============================================================================================
Sometimes streams are not closed properly, which can lead to unexpected behavior. The following are some common issues that can occur when streams are not closed properly.
The streamable UI has been slow to update.
This happens when you create a streamable UI using createStreamableUI
and fail to close the stream. In order to fix this, you must ensure you close the stream by calling the .done()
method. This will ensure the stream is closed.
import { createStreamableUI } from '@ai-sdk/rsc';
const submitMessage = async () => { 'use server';
const stream = createStreamableUI('1');
stream.update('2'); stream.append('3'); stream.done('4'); // [!code ++]
return stream.value;};
On this page
Deploy and Scale AI Apps with Vercel.
Vercel delivers the infrastructure and developer experience you need to ship reliable AI-powered applications at scale.
Trusted by industry leaders:
- OpenAI
- Photoroom
