Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix ERR_NAME_NOT_RESOLVED on Windows 10

Seeing ERR_NAME_NOT_RESOLVED in Chrome on Windows 10 means your browser can'...

Python UnicodeDecodeError When Opening Files: How to Fix

You try to open a text file in Python and get UnicodeDecodeError: 'charmap' codec c...

Fix Git 'index.lock' File Exists Error in IntelliJ
If you see an error like fatal: Unable to create 'project/.git/index.lock': File ex...

Fix Chrome Certificate Error: Invalid Authority SSL Certificate
If Chrome shows 'Your connection is not private' with 'NET::ERR_CERT_AUTHORITY_INVALI...

Fix Windows Security App Permission Issues
You open Windows Security and see a message like "This app has been blocked for your protecti...

Nginx Upstream Connection Refused: Diagnosis and Fixes
When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...


    Issue queue
Sitemap
Fix Remote Desktop Connection Blocked by Firewall
Fix Docker Compose Environment Variable Not Set on Build
Git Push Rejected Non Fast Forward After Rebase
Troubleshooting Cloudflare SSL Full Strict Mode
Fix Cloudflare Wildcard Subdomain and Root Domain Conflict
Troubleshoot Missing IntelliSense in Remote SSH
Fix VSCode Permission Denied Extension Errors
Mac VS Code Terminal Not Responding – Fixes
Troubleshooting Edge Sync with School or Work Account
VSCode Venv Permission Denied Error Solved
How to Fix Unhit Breakpoints in Angular with VS Code
How to Resolve Permission Denied in VS Code on Network Drives
Desk note

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