LangChain "Agent stopped due to iteration limit" error: how to fix
Why the "Agent stopped due to iteration limit or time limit" error fires - and the five-step fix that beats just raising max_iterations.
Topic
How To
Tactical how-to / step-by-step / troubleshooting
n8n webhook returns 404: the most common causes and fixes
n8n 404 on webhooks is usually a wrong URL path, missing production webhook activation, or an n8n_disable_production_main_process flag. Steps to find and fix each cause.
How to fix the n8n "ECONNREFUSED" error in HTTP Request nodes
ECONNREFUSED means the target service is not listening on that port, or n8n is in Docker and cannot reach localhost. Replace localhost with host.docker.internal, verify the port, and check firewall rules.
How to set up an MCP server in Claude Code on Windows
Add HTTP, SSE, and stdio MCP servers to Claude Code on Windows. The cmd /c npx wrapper, the three scopes, and the errors you hit if you skip the wrapper.