Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Python Permission Denied When Installing Packages with Conda
You're trying to install a Python package with Conda and see a 'permission denied' er...
How to Fix npm ENOENT Errors During npm install
When you run npm install and get an ENOENT error, it means npm can't find a file...
Cloudflare DNS Setup Propagation Not Completing: Fixes
You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...
Fix npm run build Failed After Git Pull
You pulled the latest code from Git, ran npm run build, and got errors. This is a co...
How to Fix Git 'index.lock' File Exists Error
When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...
Issue queue
SitemapResolving pnpm Lockfile Merge Conflicts
How to Fix Windows Update Error 0x80070005 Permission Denied
How to Resolve Nginx Permission Denied for SSL Certs
Setting Timeouts in Python Requests: A Practical Guide
Windows npm Build Failed: Quick Fixes
Fix Cloudflare Wildcard Subdomain and Root Domain Conflict
Windows 11 Update Stuck: Troubleshooting Checklist
Install Python Packages Without Sudo
Windows 10 Real-Time Protection Not Turning On? Try These Fixes
DNS_PROBE_FINISHED_NXDOMAIN Error After Update: Solutions
How to Fix Cloudflare 522 Errors: Connection Timeout Guide
Chrome Update Broke Sync: Troubleshooting Steps
How to Fix Windows Update Error 0x80070005 Permission Denied
How to Resolve Nginx Permission Denied for SSL Certs
Setting Timeouts in Python Requests: A Practical Guide
Windows npm Build Failed: Quick Fixes
Fix Cloudflare Wildcard Subdomain and Root Domain Conflict
Windows 11 Update Stuck: Troubleshooting Checklist
Install Python Packages Without Sudo
Windows 10 Real-Time Protection Not Turning On? Try These Fixes
DNS_PROBE_FINISHED_NXDOMAIN Error After Update: Solutions
How to Fix Cloudflare 522 Errors: Connection Timeout Guide
Chrome Update Broke Sync: Troubleshooting Steps