Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Docker Compose Environment Variable Not Set in Container: Fixes

You ran docker-compose up, but the environment variable you defined isn't availa...

Git index.lock File Exists: Quick Fix Checklist

You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...

Fixing VS Code Git Authentication Failed Error
If you see "Git authentication failed" when pushing or pulling in VS Code, it usually mea...

Docker Container Exits Immediately with Volume Mount – Fixes
You start a Docker container with a volume mount, and it exits immediately – no error, or just a ...

How to Fix Nginx Upstream Connection Refused on Port 80
When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix DNS Probe Finished NXDOMAIN Error on Mac
You're browsing on your Mac and suddenly a site won't load, showing the error DNS...


    Issue queue
Sitemap
How to Resolve Nginx Redirect Loop HTTP to HTTPS
Fix Git Push Non-Fast-Forward and Permission Denied Errors
Troubleshooting Cloudflare Full Strict SSL Errors
Git LFS Migrate: Rewriting History for Large Files
How to Solve Volume Permission Issues in Docker WordPress
VS Code Terminal Not Opening on Mac: Troubleshooting Guide
Blue Screen After Update Uninstall: Windows 11 Troubleshooting
Python Not Recognized in Windows 10 Command Prompt – Fix
Bitbucket Merge Error: Refusing to Merge Unrelated Histories
Docker Compose Multiple Environment Files Not Merging? Fix Here
How to Fix Windows Defender Permission Denied Error
Avoid Hanging: Python Requests POST Timeout Guide
Desk note

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