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 raises NotImplementedError on Windows because asyncio does not support Unix sockets. Fix: pass transport="streamable_http" or run inside WSL2. Full workaround inside.
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
401 = expired connection (fix in Power Automate). 403 = missing permission in target system (fix in SharePoint, Dataverse, Teams, or DLP policy).
Cursor rules not loading: 4 causes and how to fix each
Four causes: wrong scope (project vs global), invalid glob pattern, missing alwaysApply flag, or .mdc frontmatter syntax error. One-minute check and exact fix for each.
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
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.