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AI SDK 4.2 is now available!

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AI SDK by Vercel
Foundations
Overview
Providers and Models
Prompts
Tools
Streaming
Agents
Getting Started
Navigating the Library
Next.js App Router
Next.js Pages Router
Svelte
Vue.js (Nuxt)
Node.js
Expo
Guides
RAG Chatbot
Multi-Modal Chatbot
Slackbot Guide
Natural Language Postgres
Get started with Computer Use
OpenAI Responses API
Get started with Claude 3.7 Sonnet
Get started with Llama 3.1
Get started with OpenAI GPT-4.5
Get started with OpenAI o1
Get started with OpenAI o3-mini
Get started with DeepSeek R1
AI SDK Core
Overview
Generating Text
Generating Structured Data
Tool Calling
Prompt Engineering
Settings
Embeddings
Image Generation
Transcription
Speech
Language Model Middleware
Provider & Model Management
Error Handling
Testing
Telemetry
AI SDK UI
Overview
Chatbot
Chatbot Message Persistence
Chatbot Tool Usage
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Completion
Object Generation
OpenAI Assistants
Streaming Custom Data
Error Handling
Smooth streaming japanese text
Smooth streaming chinese text
Stream Protocols
AI SDK RSC
Advanced
Reference
AI SDK Core
AI SDK UI
AI SDK RSC
Stream Helpers
AI SDK Errors
Migration Guides
Troubleshooting
Azure OpenAI Slow to Stream
Client-Side Function Calls Not Invoked
Server Actions in Client Components
useChat/useCompletion stream output contains 0:... instead of text
Streamable UI Errors
Tool Invocation Missing Result Error
Streaming Not Working When Deployed
Streaming Not Working When Proxied
Getting Timeouts When Deploying on Vercel
Unclosed Streams
useChat Failed to Parse Stream
Server Action Plain Objects Error
useChat No Response with maxSteps
useChat "An error occurred"
streamText fails silently
NaN token counts when using streamText with OpenAI models
Model is not assignable to type "LanguageModelV1"
TypeScript error "Cannot find namespace 'JSX'"
React error "Maximum update depth exceeded"
Jest: cannot find module 'ai/rsc'
TroubleshootingStreamable UI Errors

Streamable UI Component Error

Issue

  • Variable Not Found
  • Cannot find div
  • Component refers to a value, but is being used as a type

Solution

If you encounter these errors when working with streamable UIs within server actions, it is likely because the file ends in .ts instead of .tsx.

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Streamable UI Component Error
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Solution
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