How to fix CrewAI hierarchical DelegateWorkToolSchema validation error
Upgrade CrewAI to a release containing PR #2608. The schema accepts Union[str, dict] and _run coerces dict args back to strings. Four failures look the same, four fixes.
Topic
Troubleshooting
Error-fixing (combine with How To)
How to fix LangChain MultiServerMCPClient NotImplementedError on Windows
MultiServerMCPClient fails on Windows because the default Selector event loop has no subprocess transport. Set the Proactor policy to fix it. Telling four host contexts apart up front.
How to fix Claude Code SessionStart hooks firing without context
Plugin SessionStart hooks fire but Claude does not see additionalContext. Move the hook to ~/.claude/settings.json. Plus four similar bugs that need different fixes.
How to fix the Make HTTP module 40-second timeout error
Make's HTTP module times out individual requests at roughly 40 seconds. The fix is two-layered: retry transient slowness with Break, and redesign the call when the API is reliably slow.
How to fix Power Automate flow 401 / 403 Unauthorized errors
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Cursor rules not loading: 4 causes and how to fix each
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How to work around Make's 40-minute scenario hard limit
Make caps every scenario at 40-45 minutes. The fix is architectural: split into webhook-handed-off children, checkpoint to a Data Store, voluntarily exit at 35:00.
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.
n8n webhook returns 404: the most common causes and fixes
Production webhook 404 in n8n almost always traces to one of four causes. Here's how to identify which and fix it in under five minutes.
How to fix the n8n "ECONNREFUSED" error in HTTP Request nodes
Inside the n8n container, localhost is the container - not your machine. The one-line fix, plus the IPv6 gotcha most guides miss.