n8n AI Agent Nodes Break After Google's Gemini Interactions API Migration: How to Fix It
Why n8n's Gemini and LangChain AI Agent nodes stopped returning usable responses, and the Code-node workaround while the official fix is still pending.
Topic
No-Code
A collection of 54 issues
Fix n8n Chat UI output_text Error on Message Two
Fix the n8n Chat UI error that appears on the second message with a self-hosted LLM.
How to fix n8n HTTP Request Bearer auth 401 with pagination
n8n's HTTP Request node silently swaps a working Bearer token for the literal string "hidden" once pagination is enabled, causing every paginated request to fail with 401. Here's the exact workaround.
How to Fix Zapier's Discord Integration 2.0 Endless Reconnect Loop
Zapier's Discord integration 2.0 traps some accounts in a reconnect loop that the standard Reconnect button can't break. Here's the delete-and-recreate fix, the three-dots-menu alternative, and how to tell it apart from a separate permissions error.
How to Fix n8n AI Agent Tool Calls Not Saved in the Memory Node
n8n's AI Agent never writes the tool_calls array to Memory, so the model imitates a fake history and stops calling tools. Here are the two fixes that work today.
Fix LinkedIn "Requested Version Is Not Active" in Zapier and Make
LinkedIn retires its API version every year, and Zapier's and Make's LinkedIn connectors break when it does. Here's the same-day Zapier fix, and why Make has none yet.
Zapier and monday.com Webhooks Return 500 Error After monday's Federated API Migration: How to Fix It
Why a working Zapier-to-monday.com webhook suddenly starts throwing 500 errors, the header that fixes it, and why that fix isn't permanent.
How to set up Entra Service Principal auth for n8n Microsoft nodes
Run n8n's Microsoft nodes unattended: the full Entra app registration and Service Principal credential setup for n8n 2.30, plus the node behaviour change to plan for.
Fix the n8n DeepSeek reasoning_content 400 Error
The DeepSeek AI Agent 400 is a field n8n drops between turns - here are three confirmed workarounds while issue #29119 stays open.
Add MCP Tools to a Make AI Agent (Add MCP Button)
Make AI Agents can finally call external MCP server tools next to native modules - here is where the Add MCP button lives and how the connection works.