Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Nginx Upstream Connection Refused & Upstream Not Found

When you see upstream connection refused or upstream not found in your ...

Fix VS Code GitHub Authentication Failed Error

You're trying to push or pull code in VS Code, but you see an error like Authentication...

Fix ERR_NAME_NOT_RESOLVED in Chrome: Network Troubleshooting Guide
When Chrome displays ERR_NAME_NOT_RESOLVED, it means the browser cannot translat...

Fix Python UnicodeDecodeError with os.listdir
When you run os.listdir() on a directory containing files with non-ASCII names, you ...

Fix Docker Nginx 502 Bad Gateway with MySQL
You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer
If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...


    Issue queue
Sitemap
WSL Debugging: Why VS Code Breakpoints Don't Hit
How to Fix node-sass Build Errors on Linux
Nginx Configuration for Cloudflare 522 Error
Fix 'docker network not found default network' Error
docker compose set environment variable from file
VSCode Terminal Not Opening with Python Fix
Git index.lock Error: Causes and Fixes
Cloudflare 521 Error: Port 443 Blocked Fixes
VS Code Git Not Reflecting .gitignore Changes
VSCode Debugger Breakpoints Not Hit After Update: Fixes
How to Fix Chrome Startup Crash by Disabling Extensions
Resolve npm Permission Errors After Node Upgrade
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities